I guess it would seem there's no clear or definite opinion on this and 'experts' can land on either side of the fence.
So far we've had no problem with frozen chicken wings and ribs and I've not read any horror stories from raw. I find it helps keep Monty regular and I'm always getting comments that his teeth are nice and clean, despite us never cleaning them ourselves.
I think I'll therefore continue but perhaps reduce it from daily to three times a week.
Monty seems to love them regardless of what the experts say and if it were up to him, he'd live on chicken wings!