Honestly, I think it is dependent on the individual and the flexibility/health of the shoulder girdle. They don't bother me so long as I don't try to go down past my ears in back (as a reference point). I have heard things through the years about how terrible these are for the shoulders...blah blah yakkity. But I think there have been plenty of people that have effectively used them without issue over the years.

Some people are built to bench, some people get injuries from it. Some people can squat, others get injuries.
Some people can brush their teeth, other get injuries... it really doesn't matter what it is, there are those that can, and for whatever reason there are those that can't.

I would say to take it easy at first. Light weights, perhaps use them as a warmup (bradfords are good for this) to loosen up the shoulder and then make your call from there.