This jump from 63 to 668 models sounds like a lot, but quantity doesn't always mean quality or even usability; that's a common failure mode in tracking.
More often than not, a massive increase in options just means a bigger pile of junk you still have to sift through to find what works, like buying a bulk box of screws and half of them are stripped.
The weakest link here is assuming 'tracking' translates directly into useful, actionable data for users.
If most of those models are experimental, poorly documented, or just unstable, then the true blast radius of that "growth" is just more wasted effort trying to figure out what's actually reliable.