Two thoughts that this page has left me with:
1) We always judge albums as though they were created 100% as the author had envisioned them in his head, with no obstacles and out of 100% burning desire to do it, and honest interviews just prove maybe half of all music is made that way, and that still doesn't guarantee it will be good.
2) Honestly, if I were a real PT fan (a really casual one at the moment), I wouldn't be mad at Wilson for blazing his own trail. He obviously doesn't have any ideas for PT now so would you rather have him make his own music or no music at all? That, and I really hate it when bands turn into artist solo projects. It's like Pain Of Salvation, music is being made under the Pain Of Salvation name but we know it's Daniel-music. It barely has what made them unique, and people declaring they are PoS fans usually follow with a long discourse of their level of like and dislike for the "new" stuff because such dichotomy alienates fans. I like the Road Salts but I would feel much more comfortable with them if they were DG's solo project and if PoS still existed, even if disbanded, as a band entity that once made their own stuff. Not as Daniel and a bunch of dudes whose names and playing styles I barely get to learn before they're replaced with other dudes.
And, you know, PT still does exist so in some years SW might return to them, unlike PoS, where Johan and Kristoffer before all them and Fredrik weren't motivated to stay in the band anymore because it's barely a real band. That's a paradoxal situation - a band which isn't putting out any more albums exists as an entity, and an active band doesn't, but that's how I see it in my head.
tl;dr an artist should always make the music they feel like making, with no constraints, and if they can't find a place for it within the band, they should take it out of the band. That, and there is just so much in a name...