I can honestly say it has been a long, loooooong time since I heard someone say that CrossFit's quality standards are too strict. I like the perspective, it's usually the opposite.
I actually gave a presentation at Michigan State last weekend in front of 200+ football strength coaches about the same topic. They're long videos, but check them out if you want.
(both links are w/f safe, I come in around the 7 min. mark on the first one)
In the end, there are a ton of different expressions of CrossFit, and each make their own movement standards. Our Affiliate has the highest standards of movement I've seen in person, but I'm biased obviously! We also train mostly younger kids, so movement quality is even more important. As long as you know the purpose behind your training, set whatever standards you need to meet that. But, like I said in the video, there are really three that must be kept to at all times: Midline Stability, Loading Order, and Laws of Torque.
Brendan, I used you for our Quote of the Week if that's okay. I gave you credit!