I've never had a problem with flight crew cutting the line, and don't see a big deal. They should be screened at the same level applied to frequent travelers as they are as "known" as I am. No more, no less. But having the folks making the plane go get ahead of the line seems like such a minor deal.
I would imagine that most of the folks who object to this
don't object to their own cutting of security and boarding lines due to status. But, of course, that's different
Cheers.