every faction has brain dead tactics like blobbing and Mg spam etc, its not something thats unique to axis. I dont agree with your statement saying axis squads are more forgiving because axis usually have smaller squad sizes, making them more venerable to being wiped.
You need to define what you mean by 1 powerful unit and weaker allied units? what units exactly.
In team games this a is a trend ive noticed, in low level games axis teams win more but in higher level games where you tend to have organised teams, allies are winning more.
The two examples you give are pretty much exclusively viable as axis. MG spam is already an unviable/cheesy strat, but if it's going to work, it's only going to work with Ostheer, because all other stock MGs are garbo.
Continuing on that point, it's much more viable to blob as axis because you won't be facing a wide-arced, fast suppressing MG to shut it down.
Smaller squads have perks - among others, building combat, less units in the open to get suppressed, etc.
Would you rather have 2 t34/76 or one panther, micro-wise?
Honestly these all sound like arguments of a low-level player, no offense.