My experience is opposite.
And I've seen and been in plenty of originals bands where the singer is not the lyric writer and manages to learn the new song or 2 every week and not need a stand.
It comes to this - if a tune is SO new that all the players would need a stand (pub gig / rock gig etc, not orchestra) then that song is not ready for performance at all.
However if 1 person in the band needs a stand and the others do not - then that 1 person is letting the side down. Doesn't matter what instrument it is. Guitar / voice / drums / keys, flugel horn. Doesn't matter. They need to do more practice. Like the other band members managed to do.