mmm...usually I stay away from these " sensitive" topics but I go on a holiday so what the h'ck.

I think it is a non issue.
It doesn't matter at all whether you are faking, playing real time, playing partly realtime or whatever.
You are there to entertain your audience, because that's where they paid their money for. No matter how you do it!

You don't perform for the maybe "one" musician who "might" be in the audience.

Personally I prefer any full live band over any live playing arranger keyboardist and I prefer any live playing keyboardist over a midiplayer, that's not the issue... but there's a good reason why some dj's are doing very well.. They have a good show!
(and are payed extremely well)

This is my personal opinion so it is not an attack to anybody..

Fred

(I really love DON's comment )