I had a dentist explain to me the same for getting my wisdom teeth out, as if it was a selling feature. At least for me, having my memory wiped is far more scary than just being put unconscious (or having some pain and a local anaesthetic).
When I wake up from dreams, even with no memory of them, I sometimes have "a memory of a memory"; the tip-of-tge-tongue feeling that there's something interesting I'd experienced, but which I now can't remember what it was. But with the anaesthetic, there wasn't anything like that at all.
I was lucky that coming out of sedation was actually fantastic, like the only time I can remember feeling that blissfully relaxed was in maybe a few beach holidays I went on as a kid.
General anaesthetic scares me way more.