Sounds like "if you're fixing this one thing, why not fix everything? And if you can't fix everything, why fix anything?"

No. We can fix things one at a time. Master/slave doesn't upset me but it does upset some people. Ok, if they're willing to put in the effort to update the code and all the docs then I'm willing to adopt the new terminology.

If you can make a bona fide case that 'kill' or something else upsets you and I'm convinced that you're sincere, and you have a superior alternative like 'leader/follower', you'll have my support to make a similar change.