As I tell people in the day job Ed, it depends how the message is packaged. Constructive criticism is welcome as is encouragement when appraisal is sought on someone's work. Us mod folk don't enjoy picking up toys that have been thrown out of the pram.
Your anecdote regarding the previous Fry set-up tells us all that needs to be known about the current custodians. We know something needs to 'wash its face' as they say but it should not be to the detriment of the pieces in the collection and/or what it is meant to symbolise, hence my suggestion that the more important pieces be cared for by people who understand and appreciate their significance rather than some jobsworth who couldnt give a rats.