Whirlwind crits, it's really good if you have a 2H build.
I think it's just Enrage that's bugged. For example, if you use Enrage then All in on the same turn, it won't crit. It'll work on the next turn however.
Not sure if it's intended or it's bugged. Although Adrenaline + Enrage + All In + Executioner does sound pretty OP if it crits 100% of the time, so maybe?