Not really. A PG has a clear role. He is the main ball handler and set up man for the team. Wings are called "wings" because they play and set up on the flanks during any given possession. Yes, Steve Kerr was a wing. Furthermore, the Triangle was a system where ball handling wasn't that important and never needed a great ball handler to execute. It centered on quick ball and player movement within said "triangles" to create mismatches and create open shots. The Triangle is also outdated for the very reason that it isn't PG centric and is a post heavy offense. Positions listings have always been irrelevant to what the actual role of a player is on the team. "Wings" are players like James Worthy, Reggie Miller, Clyde Drexler, Kevin Durant, Larry Bird, Ray Allen, and yes, Jordan and Pippen (they might've been the primary ball handlers, but the offense they were playing in really was something any player with average ball handling skills could set up. Jordan nor Pippen would be able to run an offense that relied on passing from dribble-drive penetration, probing, or the pick-and-roll).
If you mean perimeter star, best scorer/most impactful wing player, then not at all. Dennis Johnson/Larry Bird, Stockton/Hornacek, Avery Johnson/Sean Elliott, Mark Jackson/Reggie Miller, Chauncey Billups/Rip Hamilton to name le/finals teams. Irving, Wall, et al aren't "capable" because we're in an era of stacked super-teams, not because they are inherently deficient for the task.
That said, I'm not talking about height of the player, but style of play. If you don't have a perimeter player on the roster that isn't a great ball handler who can also pass, shoot from distance off the dribble, and run the pick-and-roll, your team has a bigger hill to climb than those who do. That's what I mean when I say it's a PG's league. Look at the date when I made this thread. The preceding le teams of the last decade weren't built around players of that mold. The mid-00s Spurs were very much 4-down, grit-and-grind, with Parker and Manu playing off Duncan most of the time. Shaq/Wade. Post + penetration (Wade was a terrible long distance shooter then). Gasol/Kobe Lakers. Kobe has always been just an average ball handler and prefers his static mid-post game over anything else. The non-shooting/non-scoring Jason Kidd was the PG of the 2011 Mavs, and their offense went through Dirk in the mid-post (he only took 2.4 3s per game in the playoffs) with Terry and Marion spotting up.
The two peat Heat is when we started to get a sense of the space-and-pace era to come, with Lebron, a PG, playing the central role in being a threat off the dribble in every area (from running pick-and-rolls, to penetration, to deep jumpers off the dribble), but I didn't sound the alarm because Lebron=once-in-a-generation and all that and he plays a total game. He can shoot for 3, mid-range, penetration, post, etc. Those Heat also didn't spam 3s. 2014 Spurs were heavy on ball-movement and generated those 3s with side-to-side/inside out passing, but again, that style of play was a hint at things to come, even though that offense wasn't at all PG centric, with Duncan still the team's most valuable player over the run. Then the Warriors.
After the Warriors? What do all the remaining teams have in common? A ball-handling PG who is threat is every area of the game, shooting, penetration, pick-and-roll, etc. To clarify, when I say "it's a PG's league," what I mean is that a team isn't going to resurrect something like 4-down, the Triangle, the Princeton Offense, etc and have success, since those systems are PG agnostic. And the reason those systems decentralize the PG is to make them harder to defend, allowing a team to attack from any angle and any player. Now it's HORNS 90% of the time because of how p-n-r centric it is. It's also stupidly simple compared to the others. Now why would systems centered around the PG be harder to defend today than more dimensional and complex offenses like the Triangle and Princeton? The 3 point shot. The other systems work inside-out and seek to create high percentage shots close to the basket, while something like HORNS is outside-in, depending on the attention a Curry, Harden, Lebron draws out of the middle to create lanes and spacing. If the defense sags/goes under the picks to cut off penetration and roll men, you get killed with the 3 off the dribble by those types of players. This is why the pick-and-roll (or any general screen heavy offense featuring a shooting PG as the ball-handler) is so powerful. It forces a defense into a dilemma (give up penetration/close out on 3) it can't hope to defend at the same time. And the engine behind it is an elite ball handler who can shoot. Yes, all effective offenses will force a defense into a dilemma, but what makes the current style so effective is that you can't ball deny, trap, or really double team a PG in the same way you can a big or traditional wing. They can dribble out of trouble into space (again, why ball handling is so important today) where the others can't.