Because the current features allowing Rifle blobs to destroy all in their path is fine.
I've heard using overlaping HMGs is hard, you know, the exact thing that worked on rifle blobs in coh1.
Inb4 rifle smoke, in coh1 you had elite infantry with ability to become immune to suppression and pair of HMG42s still worked just fine.
Its a sin not to blob vs clueless players who ignore support weapons really as well as its team games mostly problem.