I do think G43s having such a ridiculously high moving acc modifier is really cancerous, and unhealthy for the game. It rewards the one-control-group-blob running around much more than any other weapon profile does.
Even though I mocked Latch for showing a video where his opponent positioned 3 squads on his retreat path, I do fundamentally agree with him overall.
If their moving acc modifier was reduced significantly (maybe to BAR levels) and they got a dps buff I'd be happy with that.
I think the entire G43 upgrade should be reworked in its every iteration. 1-2 G43s per squad, long range scoped weapon that has high accuracy at long ranges and provides extra sight, but with poor (typical) moving accuracy. Could even have it not lock out the MG42 (but take up a weapon slot regardless).
Making G43s worth their while on PGrens or the Stormtroopers without being cancerous is probably borderline impossible though, since you are directly competing with basically a BAR on the PGren side and an ultra high close DPS SMG on the other.