I have first hand experience. Whoever talks crap about someone else's training without having gone through the program, has a lot to learn about aviation and life in general.
They could and should improve several things, but it's a really good program, FAIR from day 1, and yes, really intense. 4 guys in my class were let go, but not before getting extra training and extra opportunities. This is a demanding profession, and some people don't have what it takes, it's that easy.