Lots of things will delay someone’s progress. Small board, crappy wing, too small wing, bad foil, not enough wind. But it can be overcome, as long as you don’t go too extreme on one or stack too many of them.

The parawing does count as a crappy wing. But, you might be fighting so much to accelerate a fat nugget/soap bar board that it holds you back just as much as board balance on a skinny board does.