That could be the cause. They use “AttackRun”, and AttackRun works in a way that tends to feel, well, buggy.
There are minimum and maximum ranges they will shoot from in it, so a 10% range to the weapon max range can actually be a much much larger increase in the range they’ll actually fire at.
edit: Had something here that was wrong.
I don’t really think more range would effect them more since break distance is increased, and max break distance is far less than their max range. They only got like an extra 125 range of attack window on the first pass.
Anyway, it’s not worth wasting time looking into unless someone can actually confirm it by having a side by side sort of video of HW2 vs HWRM. It could just be from people not playing a while and not remembering them being that strong.