I am tempted to say yes, but in truthfulness it really depends on a lot of details. If we are just talking about the card creation phase, then I recommend other tools I made, especially voice 2 Anki (posted on hn at the same time but has not taken off for some reason :) )
If we are talking about the actual learning and memorizing phase, then yes, I think those tools are valuable. But that being said, I'm also sure there are some edge cases of very specifically weird things that do not end up very suited for those tools.
That's fair advice! Creating cards is also learning, so if you generate content using LLMs instead then you'll be missing out.
To expand my previous comment: writing a lesson to memorize always helps, but that does not mean that having some printouts from university won't be a good tradeoff or manually copying a whole book instead of renting it etc