I do agree, that the people who have been burned before by buying the first part of a series and not seeing any further releases, will be hesitant going forward.
However, I do think the fact that Bleach and Naruto are some of the biggest IPs in anime will help carry it through - Naruto at the very least. Some people aren't really into anime but they know about a ninja who wears a 'bright orange jumpsuit' or they know/knew a weird kid at school who runs like Naruto with his arms behind his back - that's the kind of cultural penetration Naruto has.
I do think when more casual fans see them on Amazon or HMV, they are more likely to buy these sets than say InuYasha, for example. InuYasha was popular in its own right, but it never turned into a 'franchise' like Naruto or Dragon Ball Z with numerous movies, video games, trading cards, and a hugely successful manga. If AL manages to somehow **** up Naruto and Bleach, I will genuinely be impressed. It's the equivalent of releasing 'Hogwarts Legacy'; a half-baked and very average RPG experience, but it sold like hotcakes because it was Harry Potter, AL don't even have to try that much.
They just have to stick some cover art on a cardboard box, design a 20-page episode guide booklet, throw in some useless art cards as they usually do and it will sell - it doesn't have to be amazing, as long as the discs work (which to be fair, is a bit of an ask these days).