How is this not an indication of quality? They're not inspecting cars for kicks and giggles, they're inspecting them to make sure you're not hurtling a death device that will kill you and fellow drivers on the autobahn.
These are not initial build quality issues.
I got notices for worn wipers and too low wiper liquid, but never a hard fail. Unless there were other hard fails on the list, then they got added. That happened once so far, the most serious issue being the not properly working headlights (still have to track down the wiring issue). Never failed for tire inflators, never saw those being checked or asked for.
But again, Teslas Model 3's issues are mainly suspension, brakes and steering it seems. Together with constantly worn tires on one side only, I'd guess the whole suspension design, geometry and load distribution is bad by default. Most of the time this tire wear patterns are user errors, aka bad tuning attempts and tire choices, bad tire pressure...
But ye it is an indirect measurement.