Because multi-sig is still too obscure for the average user to create
It's not too obscure anymore

. I've already explained that
in another post - give it a read and tell me what you think.
I have no qualms about what you're doing, and wish you the best of success. But users are still navigating to a central source (namely your website) to set these up. I want them to have the ability to do it at home without having to go to a 3rd party website.