I think it's great. Sometimes they cook them to perfection, but the use of grenades makes them far more engaging and fun.
Tho maybe lowering the accuracy would be a good idea... laser-guided molotovs to the face is a bit too much. Especially when we are attacking and have the initiative, thus enemies shouldn't know where we are yet without LOS.
So maybe lower explosives use when the AI defends and leave it as is when they attack?