See my comments at https://en.wikipedia.org/w/index.php?diff=728835253; the slow speed of typing would make categories extra useful when navigating on flip phones, so the possibility of putting them on a separate page (per Brion in 2012) would be particularly appreciated.

I would appreciate it; even if you know that you shouldn't use the bottom-of-dropdown reasons, it's always possible to forget or to pick them by accident when you're trying to use a totally different rationale. Much easier to remove those reasons from view entirely for us "normal" admins, to prevent mistakes.