Henriques has done some good work, but this is not among that work (not surprising given where its posted).
I agree with the above that it basically boils down to being exceedingly black and white. I'm sorely tempted to post a counter-argument saying the scholar-practitioner model is ineffective because its all about training people to believe that a hug is all anyone ever needs and therefore its totally okay that their doctoral graduates can't add single digit numbers....
The clinical science model is not without its flaws for sure. Its still a developing model and we're only a few years out from the Delaware Project. The clinical science movement is not about what is the best training for "therapist" but whether "therapist" is the best core identity for applied clinical psychology moving forward. Therapist training is a consideration, not the end-all, be-all. His argument seems to rest on the assumption it is, which I think is often the crux of the problem in these debates. When you have an exceedingly narrow view of what a psychologist can do...yeah, I can see why it would make sense to make the training narrow too (though even then it will come with many negative consequences). I see little evidence its beneficial, ample reason to believe people will be able to keep up with the changing times and significant reason to believe such an approach will lead to further intellectual and financial degeneration of the field unless we change dramatically from the current approach.
I also fully agree with Cara, I'm not sure what people think is being taught in these programs. Believe me, clinical scientists understand the role of therapeutic alliance...likely better than most of those outside clinical science programs that don't emphasize scientific training. My clinical science program had a whole course dedicated to it. I'm not sure how scientific training precludes this from happening.
I'm also curious if Henriques would be doubtful of Marsha Linehan's ability to implement DBT because of the amount of grant funding she has pulled in...