Why are you so pessimistic about Matt?
1. Calling some bad voice changes after, say, 35, natural , inevitable and not worthy to upset is the same thing as calling wrinkles and obesity after, say, 40, even more natural and inevitable. Anyone who takes care of himself will neither get fat nor lose the vocal range completely. Aren't there any examples of people older than Matt who still sing as good/ high as in their early days? There are. Is Matt worse?
2. Matt sings decently if he wants to. He hit his highest note this year. Why he doesn't want to sing as good as he can sometimes, is another question.
3. Can we help Matt anyhow? Can we change the current situation? None of us will go and sing the last part of DI/Madness instead of Matt, no matter how much we write about it here. Should we still discuss it if we can't do anything about it?
Well, in fact, we can help. We can go to church and pray...what if it works?