Ask youself why Brits should have best stock medium tank in the game for the cheapest price at the same time?
"Because they have less stock unit options then any other army" sounds like an answer to me.
Cromwell is even better then PIV (which is more expensive), and have insane flanking capabilities and insane speed with vet.
And P4 gets insane armor with vet and ability that allows it to warp away while shrinking its size at the same time(yes, blitz makes you harder to hit as well).
Sure we can bring target size back, with cost increase or left it with new target size for same 110 fuel and it still well best medium in the game.
Or leave it as it is, because while the tank is great in comparison to others, it needs to be in the context of the army its in.
Main and only problem with it was crush and it was addressed.
Also "weaker" Allies AT myth is only applyable to US AT gun. Both zis and brits AT gun and hell even zooks, can finish PIV just as quicly as PaK can finish cromwell.
You do realize that brit 6 pounder is just copy of PaK40 and RoF is also important thing for AT guns and ZiS is last here?
Or should we also address StuG target size and normalize it with SU-85, because there is no reason not to?