Actually it's ingenious - as a tank was never developed to be an anti infantry weapon in the ranges and scales thats represented in the game.
In ww2 tank crews basically looked out of small slits in a massive shaking, smoking tin can, they didn't have the sophisticated cameras or protection that today's tanks have and therefore a lone tank in CQB was extremely vulnerable to infantry attack.
Shooting AP rounds at infantry from a main cannon would only be effective at a direct hit and near miss scenario - sure it would be extremely frightening but in the scope of a battle not that effective, also a tank could not engage their main gun properly from close range, nor could they keep up with infantry hiding in ruins and landscape.
This is represented perfectly in the first game where a lone tank, unless it was a heavy tank with a larger cannon , pershing, tiger, KT, and Sherman with non ap rounds would do more than singe unit kills to infantry.
In this game as soon as any tank comes out a whole infantry army has to run and hide.
From a game perspective target tables enable the developer to properly balance any unit in the game, make them strong vs this one and weak vs that one - it made the game thoroughly better, more balanced, more fun and in some ways more realistic.
Removing them well ... you see what happens, the game is a huge disappointment, with huge sections of units being useless / OP and the game being a shadow of what it could have been.
I'm sorry but you are speaking pure nonsense. The entire purpose of tanks is to fight infantry. That's why tanks always had more HE rounds than AP rounds. IRL EVERY tank in ww2 had HE rounds, no matter if it was a tank destroyer or anything. 95% of a tank does is fight infantry. That is the entire purpose of tanks. Kill and destroy infantry, fortifications, while being immune from infantry themselves. Tanks were developed solely for the purpose of being infantry killing machines and being immune from infantry themselves.
Valnuarable to infantry attacks? Most anti infantry weapons were only effective from 50 meters or so. It's practically impossible to get so close to a tank in a combat situation , especially SINCE tanks are usually supported by infantry.
Oh, and in WW2 tanks also had something called a HATCH, that they could peek out for good 360 degrees vision.