I understand what you say but nobody who wants Kawhi offensive development is rush to bury the Big 3.
Most of fans know Tony and Kawhi will carry the team when Tim and Manu are gone. The Spurs don't have a great history luring stars FA, they aren't willing to pay tax, and people don't want to believe the team is done without Tim, so they want Parker and Leonard look comfortable playing together and be a great scoring pair in the league.
If people expect Kawhi to improve his game to all star level, get more touches, play more minutes, it doesn't mean they hate Tony/Manu or Pop, just means they think Leonard's improvement is the Spurs best chance to continue being a compe ive team after Duncan Era.
Even with the Big 3 still playing, Leonard needs to increase his role because you can't develop a player in one only day, the next day after Tim/Manu retirements.
I've been a Spurs fan since I was born, it's a family thing, my dad, uncle, cousins (I registered here when Kawhi was 15 years old and never dreamed to play in SA) so I'm not Spurs fan for Leonard, but I celebrate he attracted new fans and I welcome these guys.
The analysis of one game's situation doesn't mean you don't appreciate the team's history, or stop to show your loyalty/love for the team.
Under this criteria to post, nobody could say nothing about plays, players, coaches, because the criticism would be immediately confused with hate.
I expect we can realize the difference between the two things.