that statement would make sense if armor was free, if u pay for more armor then it's irrelevant as u will deal damage to more expensive unit
The price is irrelevant in this case. Its comparing pen rates in or stock armour against stock AT options. It's simply a matter of fact that even a Shrek clone would be less effective facing against the axis than it would be against the allies. There's nothing wrong with this, as you've said they pay for it, but equating one AT option against its rivals isn't as cut and dried. Yes allies due to the silly weapon racks can pump out AT blobs, but they are less effective. The reason Shrek blobs are so problematic is because they work so well and reliably. Don't get me wrong I hate blobs of all kinds on both sides of the game, but pretending that one AT blob and another are equal isn't correct. You have lower pen facing higher armour units. A blob of 50 zooks could fire and get 60 bounces against any stock axis tank starting at the p4 and up while the same is impossible for the Shrek.
Again, I don't have a problem with the discussion at all, but the highs and lows for both should be taken into account as one does not equate the other.
I've also always been cautious of cheap AT squads and defended the pre fussiliers Shrek by only being on squishy squads. I'm not trying to create an allied AT utopia or something here...