It’s actually kind of amazing to me, how the writers have pretty much redeemed Snips and Snails from being what they were early on, where they were just those two morons who fucked everything up with Trixie.
Snips seems like he most certainly has learned from believing Trixie’s boasts, and appears like he’d never pull something as utterly boneheaded as he did in S1, judging from how he expressed skepticism of Scootaloo’s bragging about her parents in “The Last Crusade” (in contrast to how it went with Trixie), and him being shown in S9 to have a greedy side (he’s probably a lot better in that regard than Flim and Flam though) is something I can get behind. He had a good showing in “2,4,6 Greaaat,” IMO.
Snails, while not that smart, he’s actually pretty damn good at telekinesis, to the point of pulling the rare ability of self-levitation off (and not just levitating himself by using a bucket as a proxy for doing so, as he did in Buckball Season), and he’s good at performing under pressure.