The problem is over complex bass programming and riffs coming in and out that has nothing to do with the song. If you mute it, you'll lose the bass track.as a user of both I know it very well.

It is the other way around. You can sound great with Korg with minimum training because complex styles take care if the rest as long as you know when to comp your chords since busy tracks play by themselves. New Korgs ( 3x and afterwords )are getting better by making it simpler but just not there yet.

Song specific styles that you mention are the session category. You should look in to pro category and compare and contrast.

This is not about live sounding . Yes Korg is more live and punchier yet style limitations start to appear if you are use styles only for your gig and sing ( no mp3 or SMFers).