Eliezer, I think you've given ample proof that Watson has written some things as cartoonish as your OP suggests. I don't think this has been shown to be generalizable across all of the behaviorist scientists of his era. Ian Maxwell's description of Behaviorists sounds like a reasonable way for science to be done pre-MRI's, etc. But your criticism, in you OP, of Watson's approach (or at least his rhetoric) hits the bulls eye and is a perfect contribution to the mission of this blog.