It's fine to argue you think they have stale design (an opinion), but that's very different from saying their average model is 9 years old, and comparing that to other carmaker's average model age.

And it's obviously not just internals. Compare a 2011 Tesla (e.g. https://www.motortrend.com/news/2011-tesla-model-s-revealed-...) to a 2024 Tesla (https://www.topspeed.com/2024-tesla-model-s-overview/). Again, I think it's fine to say you think the 2024 version looks stale, but the difference between the 2011 and 2024 versions in appearance alone is at least as different as some "new models" I've seen from other car manufacturers.