I agree with your second point.
First, let me acknowledge that House was one of the guys who got me focused on the separation of the hips and shoulders, so I owe him that.
My biggest problem with a lot of his stuff, at least what he writes in his books, is that it either isn't specific enough or isn't as universal as he says. For example, Dynamic Balance is an interesting idea but isn't really actionable as he describes it in his books. What can I as a coach do about it?
It may be that he's holding stuff back and gives out better info in his DVDs.
I also think that House has absolutely destroyed his credibility by first saying that Mark Prior has perfect mechanics and then blaming Prior, rather than his mechanics, for his injury problems.
I think it's intellectually dishonest.
My problem with longer strides is that they generally seem to make it harder for guys to effectively and completely rotate their hips.