The fact that it actually has waveform/vector scope puts it in a different (I didn’t say better) league than AE & Motion and the video out support of course should be mandatory for a pro app (ahem, Motion 5 I’m looking at YOU).
I’ve been using Motion 5 instead of AE since the breakup with Adobe (we still get back together once in awhile cuz we both know the same clients) and for most things it’s as good and sometimes better, sometimes worse. A third option is always a plus.