I think we are referring to the fact that stripped out arranger parts are being played by the player, not dropped altogether. It's just like playing with a live band. Somehow, despite not having full horn, string and synth sections, they manage to pack dance-floors also!

Only thing different is that the keyboard player actually PLAYS all those parts! What a concept... a keyboard player, actually PLAYING the parts! How quaint!

That's all we are talking about, not some Philip Glass minimalism