I agree with you Harry, but not entirely.
I myself would be very happy with a win of almost 500x bet on DOA 99% of the time.
But this vid is part of the other 1% where I wouldn't be. After a start to a bonus round like that, I'd have been incredibly frustrated to come away with "only" 500x bet. Especially if it eventually proved to be the pivotal moment that was the difference between a certain cashout and an eventual bustout. Close but no cigar moments (this definitely qualifies as one) are a lot easier to "accept" if you still go on to make a cashout.
This vid is clearly a case of "cruel RNG" at work. A similar end result could have been achieved in a much less "sucky" manner. For example,
only 4 wilds on screen, but all on the same payline with the 4th wild only turning up with one spin to go, then getting a 5OAK of the sheriff's badge
on the last spin. Close but no cigar, but not anywhere near as "tortuous".
It is also worth considering that if the cowboy hat doesn't land on reel 2 on the 10th spin, this bonus round would have sucked even more, as it would only have scraped past 300x bet. So that's another sucky element to this vid. All those chances to hit "good consolation 5OAKs" and only hitting one cowboy hat during those final 8 spins.
That is the danger with features that have sticky wilds. JP's Dilophasaurus, Gorilla Go Wild, Untamed Giant Panda, DOA, the turd. They are only good if they land and in the right spots. And they can certainly trick you into thinking you're in for a big payout, only to then deliver the proverbial cream pie to the face.