That's horrible, the full page blur is less bad since it's so obvious. But man, you should never be intentionally gaslighting the user by making them second-guess their own vision.

The full page blur is horrendous. Every navigation to the page triggers it, so if you click and link and hit back, here's a blurry page for 2s. It also nearly triggers headaches for me, so clearly the webdesigner should not be hired for anything serious...