Strange? I don't know, I would be surprised for sure, no doubt about that, but I wouldn't see it as a bad thing. Besides that there is still a big difference between switching from one extreme style to another and the shifting from sub-genre to sub-genre. I mean seeing Psysex evolve from the style of Expressions Of Rage to Hardcore Blastoff it's not a surprise to me they've gone into a more progressive direction (at least judging from the samples I've heard). Imho of course.
From my point of view artist musn't do anything. If you feel that a new style deserves a new project name, that's up to you since you create the music and since you are having a vision for your music. But to expect all the artists to act accordingly to your personal criteria is a bit, well sellfish maybe? At least unrealistic.