What did I just say? U focus on stuff people can't see. Let me pull some obscure advantages that the crom has over the ost p4. Did u know the cromwell has a higher XP threshold than the p4 when it comes to killing infantry models. For example the cromwell just needs an infantry model to be down to 30% HP to instantly kill it if it's inside the AoE radius whereas the p4 needs a lower % for that to happen. Does this matter in the grand scheme of things? NO! People compare units largely based on experience using them. Nobody knows every little statistic because THEY DON'T NEED TO.
We can do a survey whether people feel that the AI abilities of the Ost p4 without pintle is the same as crom. This is likely a better measurement of performance than the crap you spew.
You don't need to know all the stats to play the game. You
do need numbers to discuss balance.
There are two things that matter when working out how good a tank's main gun is against infantry. Scatter, which sets how accurate the shells are, and AoE Profile, which is how that damage is distributed.
The Cromwell and Panzer IV have the same scatter, so AoE Profile is what matters.
The Kill Radius is the point where the AoE Profile line crosses 80 damage. Anything above this line is meaningless as infantry models only have 80 HP.
The Cromwell's is 0.88 m, the Panzer IV's is 1.13 m. That makes the Panzer IV better at killing full health models.
The Cromwell's AoE profile is flatter, which means it deals damage more consistently across the whole radius. Lower risk, lower reward.
In terms of general usefulness, I'd say they're pretty similar. It wouldn't change much if you swapped them over.