Orchestrator - I guess our And in terms of Sondheim, of course writing a show in mind with someone's range, is a totally different ballgame again to someone coming in 6 years later that is an "unknown" so to speak and has randomly changed the key to a 4th higher, etc.
And our guess our audition experiences differ...which is often how it is, no rhyme or reason to this industry!

But thanks for voicing your side of the matter, very interesting.
"I think it's much better of them to allow changing the key, than forcing the performer to sing in an impossible key for their vocal range - especially as it may not be required for the role."
Well in a proper audition setting the actor wouldn't be required to sing out of the range suited to the character anyway, they would sing one or two songs of their choice (obviously they would pick within their range) and then be given material from the show to interpret. Proper casting conduct and creative integrity is sacrificed on these shows for "better" entertainment to the general public.