I would rather see them improved than removed. You are asking Relic to turn infantry into a droids.
There are boarders of immersion that affect gameplay too much.
What use do I have from conscript sandbags, when one of them decides to jump out from one side and other goes to take a piss in the bush on the left side, resulting in suppression in green cover because my troops don't want to be in a safe spot.
Theres always ways to improve them.
IE:
-If heavy cover nearby, automaticly use them.
- Dont walk into a recently toss molotov, or dont even take cover behind a burning cover.
Been there, done that with DoW2.
It didn't worked until it was completely removed, only then infantry started to sit in the cover you want them to be, not where they want to sit.
As I've said, they can go wherever they want after nades or suppression, but if I put them in certain spot I want them in certain spot, I don't want to watch while they dance for 10 seconds out of cover because god damn gren/con got spasms.
And if you'd actually read what I've said, you'd noticed that I'm not talking about molotovs/nades/suppression, but about normal small arms combat and ordering to attack a squad that is in range.