I think to a point APM's are overrated because if that guy really was pushing 150 actions per minute he would've done a lot better than that. My thinking is people artificially increase it by doing shit that's pointless with no objective than just to have a high APM.
the purpouse of apm is to get used to the fact of commiting actions, weather important or not, my APM in WC:FT on average was around 70. over time you get in the habit of triming useless actions and replaceing them with actions that matter.