Not really, it's more internet in general. And if we look at social media, they have accounts as frustrating as crunchyroll to fully delete but without anything to pirate.
Like it's a fair complaint but, to be fair
If you're trying to delete your account you're already going to a different provider (in this case, piracy), so it's not like you would've happily come back to Crunchyroll just because they let you delete your account easier.