And this is why ordinary schools are harmful to the intellectually gifted: too low expectations don't provide opportunities to learn perseverance, resilience, and will-power from failure.
(Disclosure: personal experience, not scientific truth)
Then there are things like "rejection therapy" which to me sounds like something that shouldn't be necessary, ie, you learned to deal with rejection and failure through living.
Another thing to consider: I found Salman Khan's TED talk very interesting when he talked about looking at different "snapshots" of students' progress, and some would look like they were way behind ("remedial"), while others were way ahead, but in the end, they all reached the same level of progress by the end of the course. Picking a point in time and then binning students via that one data point is, quite frankly, retarded.