Rik is one of my favorite musicians as well. True triple threat. Triumph was a big part of my early music interests. Really they/he/ 33.33% of them would get something together but it sounds like the other 2 guys are pretty content with things as they are.
Rik is a super nice guy! Never forget him taking the time to speak to me and show me riffs at Music City in Port Credit. He was a regular at that store and I was very lucky to get to know him through the years.
Certainly sings great. But in fairness, those are not the same high notes. After 30 secs though, you stop noticing he's tuned down a whole step.
Perhaps in a studio, with some warm up, he could hit the notes that he did on the recordings. I wish my voice was that light and flexible.