Of course there is. Do you know how insanely high a WAR of 11 would be? Ignoring that and that the Spurs are on a mid-30s pace despite far underperforming their talent level and not even having a high talent level, it's not hard to be a plus-.500 team. The reason why some teams repeatedly struggle to get there is because their organizational direction is terrible. That can manifest itself in a poor locker room. Or hiring bad coaches. Most often, it comes from constantly fetishizing rebuilding and youth. If the Spurs just beat the bad teams on their schedule, they'd be a high-40s team. That's without them adding complimentary players that they refuse to bring in instead of playing Forbes. A 30ish-win team can improve into a plus-.500 team much more easily than can a 20-win team. I don't even know why I have to say it. It should be obvious.
Or else what, they'll be on the bad side of "meh" for a few more years? How would they ever survive that? Memphis maxed out Conley and kept giving Randolph and Allen contracts well into their decline. They maxed out Parsons even though he was already breaking down physically and refused to deal Marc Gasol while his value was high. Yet, folks hold them up as an example of tanking done right even though they didn't trade away their core until they were well into their rebuild. Memphis held onto guys even when they were bad enough to get a top-five pick, and yet people still act like they were the opposite of the Spurs.
Not being a contender isn't a horrible fate. Anyone here who follows any other sports likely roots for a team that has gone stretches of years not being a threat to win a le. Fandom stays intact, everyone survives. It's okay.