Your APM will be unaffected or marginally higher in movement heavy fights from the gap closer change, so this is just fight design dependent. The bigger APM (and DPS) impact comes from Blood Weapon being integrated into Delirium and the resultant loss of two Blood Weapon stacks, which is probably more worth drawing attention to.

I know of streamers who really want to push the claim that WAR is 'finally starting to catch up' in difficulty this time around, but WAR is still ultimately designed for a section of the playerbase that would be gated out of playing the game entirely if it wasn't so accessible and new player friendly. I think the average player isn't going to see significant differences.