My wife behaves very similarly. Often she apologizes for things that I don’t even register. It’s a difference in how we grew up. I’ve mostly settled on ignoring it now but early on I encouraged her to think about who she’s apologizing for, and if she’s doing it for me I encouraged her to stop. Not only do I not need it, most of the time I don’t even notice whatever minor transgression occurred she thinks needs to be apologized for.

Now if she does it the apologies mostly go unnoticed too because it’s not for or about me, and if it’s what she’s comfortable doing then that’s ok.

Not to mention it doesn’t say only 30 seconds so if all blind peoples eyesight is restored for at least 30 seconds then the genie could just restore it forever.