It wont without making posts thats true its not like with body armor where it really doesnt matter what we do it wont ever be changed but you can still ask for changes to smgs and still have some hope.
I got them to cut the dispersion of ARs in half which i never thought they would do but they did listen
The weapons you listed as examples were all low tier in which case this is high tier where stuff is supposed to be powerful and iirc it’s 5? it has to compete with assault rifles which just received dispersion buff so i don’t think this is an issue.