Agree. This is like one of those 'Action condense/collapse' things they're doing.

For some reason they skipped this over into a lot of jobs, like DNC Devilment becoming Starfall Dance or Pictomancer's Holy becoming Comet.

Actually I suspect that the reason is they want the sensation of many actions available? It just doesn't make sense because pressing the same key for a different follow up action doesn't seem more difficult to pressing another key right next to it that only lights up after the first one.