Actually, you're misled.
Wait times are both an indication of demand and capacity.
Crush's Coaster, Peter Pan's Flight, Test Track, Frozen: Ever After, Dudley Do-Right's Ripsaw Falls, and other rides have ridiculously long wait times because their capacity is garbage. If they had Cosmic Rewind capacity, their wait times would be significantly lower despite them all being in-demand rides because they could better satisfy the demand, thus, increasing throughput and lowering queue times. It's not that complicated. Why do you think Pirates of the Caribbean rarely has longer waits than Jungle Cruise at the Magic Kingdom? One's capacity is over double the other.
No one is arguing that there isn't demand for those attractions, but if they had reasonable capacities they wouldn't have waits that are anywhere near as high as they are.