One of the things that the college is best at is milling rumours. The 'High Faliure rate' was all over the place while i was there and still is.
My experience of the college is that you tended to lose around a third of a course per course. I started with over 35 people at the induction and now there is 15-16 of us with licences. Some people quit, some were chopped and most got some form of re course. The main thing is that it is not for everyone, not one of the 35+ i started with was un motivated or un able but at the end of the day couldn't pass the assessments.
Just keep your head down and do the work and you'll be fine. People who make too much noise generally attract the wrong type of attention to themselves and come a cropper.