If you're the top DPS in the party (yes, this does happen as healer, depressingly often), and they aren't using it, I see zero problem with it.

I can see why the party wouldn't like it though, but I've also seen MNKs get chewed out for not letting the DRG LB. Anything that irritates the party can result in a kick (including DPSing as a healer, if they're those sorts of players), so that is a risk you should acknowledge.