Oh yeah, I know what you mean. I saw Boingo about 3-4 times back in the 80's I have some pics of me and Elfman someplace. Johnny Vatos, the drummer, was super cool too. I've also been a Yes fan since I was a little snot and have seen them about 4-5 times, so, yeah, its like trying to replace Elfman, Plant or Bruce Dickinson (sorry Blaze)....just wouldnt work under normal circumstances, but in this case, I have to agree with their decision. This new guy is a dead ringer, vocally for Anderson in the 70's.
I would prefer to see Anderson back, but after meeting him a few times, I wouldnt miss the guy much.
I honestly can't say what I was told, but the illness isnt the main, deciding factor on his replacement....I just hope they make it back to Austin.