It greatly limited possible BOs and therefore led to a stale, boring, predictable meta.
It's one thing to have interesting teching options (SEE: USF) and it's another to have people skipping tech and still being competitive.
As Soviets you don't even need to build fucking t3/t4 AT ALL to remain viable. They have enough doctrinal tank options that you can have strong vehicles on the field without even investing in tech. You don't even need to spend any fuel (Maybe an M3? and t2) to fucking do it. Wehrmacht spends more fuel teching to t fucking 2 than Soviets have to spend before they can shit out tanks. (Meanwhile Wehr has to tech up and purchase units)
Americans have similar issues with armour company, but atleast those tanks have pronounced weaknesses. M10 has paper thin armour and the bulldozer sherman is lackluster vs moving vehicular targets.