Quite honestly, that mimics my impression of them. I wouldn’t recommend them to someone just starting out, that’s for sure - because of the price, as I had originally mentioned.
I think all schools have their ups and downs. It’s inevitable. However, I think it comes down to expectations. Those who typically have a bad experience with a particular school or course are going to speak out louder than those who’ve been successful, I find.
Obviously they aren’t going to provide you with the invaluable experience of having worked within the industry for several years and having shipped multiple titles, but that’s not what they claim. They teach the fundamentals required. That’s about all you’ll get from any school.
However, saying they’re a ‘scham’, due to a specific person’s experience / issues with them, isn’t right. If someone enrols without checking things, such as the ability to transfer credits, in advance - that really isn’t FullSail’s problem. They provide all that information more than clearly. The tuition fees are rather high, to say the least (though that’s the same with most places). So, if you choose to take on a course at their prices without fully researching it first? Hell, I have no sympathy for you 
Numerous people are enrolled within their courses (both online and on campus, as noted). A quick look at their alumni and graduates (some of whom have worked on the recent reboot of Godzilla, Titanfall and so forth) is proof in its own right. Their educators are all fairly well versed in their respective fields, from what I’ve seen.
But again, just to reiterate, I wouldn’t suggest someone with no prior experience or at least the very basics take on one of their courses. There’s other alternatives, which fit all kinds of budgets. With that said though, there’s a place for FullSail and I’m sure it’ll remain that way for the moment.
Personally, I’m enrolled in a course on http://training.cgsociety.org/; which I also recommended! Though, I’m using it more as a refresher.