Well the first issue is that they are turning this game into COD, to fast paced and meat grinding. Delaying health regen is pointless when the game prioritizes a rush style of play. If they brought back blur vision and link it with the duration of fire sustained on an enemy it would be more helpful for LMG to actually support allies as enemies would need to wait for suppression to subside before re-engaging or chance shooting with blur.
Personally I would like suppression to be split between explosives and guns. Explosive suppression delays health regen or slow movement speed and gun suppression blurs vision but reloading would terminate it for guns. It would make the game so much better and less meat grinder