I like it. First reason is I don’t always watch just one show, sometimes I’ll move between 3-4, so it can be a week before I see the same show again. Just because a lot of people binge doesn’t mean everyone does.
Secondly there’s no way on earth I’d want to scrub through the previous episode trying to find and remember the important points, especially with buffering, it’d probably take just as long as rewatching the episode.
Third is that it’s not always just the last episode they’re recapping, sometimes it’ll be something from episode 2 that’s only now become relevant in episode 5, and without binging it I definitely prefer the reminder, sometimes even with.
My last point isn’t really a point explicitly in favour of recaps, but finally, you can skip them very easily if you don’t want them. Most if not all streaming services literally build in a skip button for the theme/opening/recap. But even if they don’t it’s pretty easy. So I don’t really see it as a big deal in the end.
I’ve made custom flashcards for anki to study stuff and I tested this for some similar things and it was a lot faster and easier. Anki feels like it takes forever so the investment to make a custom set is only worth it for things you need to study for a long time.
If all you want is to generate a bunch of flashcards fast and you have a pdf with the info presented clearly it’s an easy method.