TS - no. It is a guide line of certain players and all I might use it for is more indepth analysis of indivduals. It might be the only source of such data but that does not make it relevant.
Checking the actual players in the matches gives a lot lower , win rate is irrelevant ofc. Many of those in their Panthers/Tigers I share matches with do not have positive k/ds.
Point being Heavy is one of my most played vehicles (well, was) and had no trouble in uptiers whilst at the time there were many complaints at how weak the two Tigers were.
You look at TS for Heavy 6 stats (since I am super average), but of course that is now very limited in number/players (removed from sale to become a MP item…) which explains in part why one might get very different results to TT ones. My stats are average, but miles ahead of those I come across that help to continue to dunk my win rate (overall, not the Heavy, heck I only do PvE Air nowadays).
Jump on most teams and it is not much fun, as in less than other nations. And still Germany get more lone games than any other, and checking US/EU queues Germany seems to have the same domination in numbers at almost every tier, like US air for ARB.
One thing, I win most Tiger on Tiger battles as they do not angle where I do, and I hide the death-sentence of that ammo on the front left you can NEVER BLOOMIN GET RID OF. And bear in mind the Heavy 6 has the mine launchers, no roof MG, no APCR; it is inferior at the same BR as the E.
Of course, this is a generalisation but one that seriously put me off playing Germany. I never felt under-powered just under-teamed.