While the exact movements and experiments being performed are not Blake inspired, I do believe that Blake was an avid experimenter and indeed sought to change and improve his technique. Consider the changes made between his two books.
I'd hate to eliminate input from those who have used Blake and found success with adjustments and changes. That's the type of thing that turned me off from the SA forum - it being over-moderated on occasion. Ask yourself the question: if he were still alive, would Mindy approve of and participate in further experimentation or insist that the method described in GTTB was the only way?
So, to bdog and cd ... don't ban yourselves!