What kind of situations are you describing exactly?
While it is difficult to wipe units if they are retreating from your face, its not hard to wipe squads on retreat if you have multiple squads with automatic weapons waiting on the retreat path. Of course if retreating squad has reasonably low HP.
The only major difference is that its much harder to wipe squads with stock bolt action rifles. Since in CoH2 you basically had ability to one-shot models with them, if RNG was on your side.
In general it is more difficult. Because your damage is now halved on retreat. So where micro could be implemented “grenades on retreat” it’s not worth it now. Even the mind games of tossing a grenade to the side or a little behind cover in hopes your opponent dodges onto it. Are now void. Because it’s just better to retreat.
Example in COH2 top players would sometimes launch a rifle nade into the squads retreat path before the squad retreats. Hoping the player hears the grenade que and then retreats the squad to avoid it. But runs right into the grenade. This would usually result in a wipe or very close to it. It’s a very HIGH risk/skill/reward. If pulled off correctly the player gets a squad wipe for implementing TACTICS (omg no way). But if he misses or it’s dodged or the bluff is called. He loses munitions. In COH3 just retreat. Because it doesn’t matter if you retreat right through a grenade now because your damage is reduced to where you will likely only incur health damage.
This adds to the even BAR riflemen. Or any squads with automatic weapons. Like the units now have to be EXTREMELY low to be wiped. EXTREMELY. To the point it’s not really worth sacrificing map control for big flanks to try and wipe units. I don’t see the justification of them reworking retreating buffs besides making it harder to wipe units on retreat.
Green cover as well is now useless against grenades. It’s almost always better retreat, then try to dodge. Which removes elements from engagements. You used to be able to tank grenades behind green cover and still possibly win the engagement. Now if you want to make a squad move from green cover you don’t have to out maneuver your opponent. Just grenade spam