I have answered this question once but it seems that I have to answer it again:
The vehicles listed have very high rear armor that make flanking with medium tank not rewarding.
A Ostheer PzIV can park behind a Churchill at range 0 and the Churchill will have a better chance to penetrate the PzIV frontally than PzIV to penetrate the rear armor.
This issue was partially fixed in patch for some vehicles but the one in this list where "forgotten".
If you find any German vehicle with rear armor more 150 pls bring it up and I will gladly include it.
Hezter rear/side armor is so low that A T-34/76 has 100% to penetrate even at max range.
only lightly skimmed threw this thread so I must have missed it. Still you're not arguing for hetzer, now its medium tanks vs heavy tanks. There in lies the problem, the comparison is between heavy allies vs medium German(apples to oranges) when you should compare the tanks to other vehicles in their weight class(apples to apples). Its the equivalent of saying the tiger should get lower armor so my sherman can pen.