The local Chevy dealer gets $160 an hour for labor. My nearest Tesla service center gets $225 hour. If they're "too busy", I'm guessing they're a profit center. I read where one Model 3 owner got an estimate of $200 for a lube job from Tesla. Even a "stealership" doesn't charge that much.
Tesla service centers are in business to make a profit, just like other brands' service centers.
It's a commisioned "advisor" at some ""stealerships" vs TSLA has salaried workers I believe that are more likely to goodwill or warranty
Also you should really compare the rate to luxury dealers vs Chevy.