Of course great idea. And as Glo said, it was a one time experience, so it's ok.
Damien himself knows that this song sounds better played calm and in a melancolic way, the way he played it so many times.
But trying something new, being creative and stimulate oneself (with his own music !) is very very good I think.
IMHO (
) he should do this kind of think more often, when he will be back on stage.