Pretty sure it wasn't a collaborative effort, I think it is mainly WN2's opinion. Zinoto's comment thread was hilarious rofl, saw that.
At this moment in time, in general, good MKs are the ones who are consistent with the death combo since it is ludicrously powerful and there is next to nothing so far in terms of how to avoid dying to it, while we find more and more ways to set up into it. It makes sense to me. In any case, Katakiri is ranked above Lucia and from what I've seen Lucia's punish game is very crisp, but his neutral isn't as good as Katakiri's, so it's not all about the combo.
idk enough about the MKs below top level to comment on them. Doesn't look too bad to me though.