I think the claim holds if you assume the report is saying accereleration is the perfect answer, in all, for all. It is neither claiming it is the right answer for all nor promoting it for non-gt reasons.

I wonder if there is a report or a book that proves the most effective practices for dumbing kids down... Wouldn't that be funny if you took a completely serious approach to writing about your kids educational experience and promote the claim "x" practices will help ensure lack of performance or achievement and therefore better societial fit :-)

I have to go rescue polly pockets from the rapidly growing salt crystals growing out of the mine because of sediment rush (in other words - there are dolls under the beds and I promised to play too). At least here - you all know the first line in this paragraph is not from my imagination but from my ears...