it was outperformed by P4 because P4 is one of the best AI mediums in the game. P4 with pintle is actually even better AI DPS than comet
Maybe the word you seek is "reliable" instead of 'best'. A single Pz4 shot is as effective as shermans AP. But shermas HE wreks havok with its AOE to the smallest squad size infantry ingame.
Even T34 were treated to be better at AI (we have to admit it, it sucked and still needs a little umph)
But in the
current patch Pz4 are far from
The best AI tank.
So if we can use some basic logic:
Allied mediums > Pz4 > Allied mediums
It is certainly a good all arounder and reliable tank, good AT paired with good AI and good durability. That is priceless and even more for OST. Pintle mount does wonders to it, it gives the extra AI for early midgame and gives a useful AA.
Buf Pz4 is far from undefeatable and is the iconic tank of OST. Its simply a good tank and there are other options, therefore no need to change it currently.
It is worth mentioning that if Pz4 shots are reliable to infantry you can bait it to shot infantry and charge it with TDs after, its 1 shot advantage there.