In my opinion, the problem with PV is not it's current stats but it's role, the gap it fills in the game. Say, if it was Marder III instead of Panzer V, I think no one would complaing about it's role this much. Almost every week someone opens up a thread about Panther nerf or stat change.
It's role currently is that of a non-doctrinal heavy tanks that suffers at killing infantry while also not fearing any infantry isn't really a role that should be in the game. These changes would more cement it's role as an AT tank, but actually gives it something to fear. Anything that can pierce it's armor will damage it greatly, even guards will start to do damage. All while it can still be used to effectively fight IS-2s and SU-85s.
Giving one of the most mobile tanks the second biggest range, while easier access to it?
No, i see aaaaabsolutely no problem with this.
To be very clear, a fast tank with a turret does not simply get "caught in a bad position", especially when it has no reason to get any closer than the range of an at gun / su85.
While i agree on your first observation about the viability in 1v1, this solution is something i dont.
P.S. large games / 4v4s go just apeshit, i would't even bother to balance that mess.
While the panther has nearly 1000 health it will never be balanced. Germans players in team games will continue to spam fuel caches and opels so they can get out as much as possible, and after two or three of them have been acheieved they become an unstoppable horde that soviets can never deal with with their meager AT.
While it would be harder to aaproach these tanks, with use of smoke or flanking once you get close enough they will die rather quickly. Simply two T34/76 attacking from different directions or ideally both from the back and you could kill it without losing a singlke tank. Something that just can not be pulled off with current balance without the use of ram.
And while 4v4 might never be truly balanced, it is rather rude to dismiss concerns simply because you do not play it, because many others do.