I can believe some would, but some probably wouldn't care. My local ranch store certainly will happily sell anyone tannerite without even a background check or any sort of scrutiny, you can cash and carry it. Walmart won't but the point being as long as it's legal there will be a "ranch store" that carries it.
>The whole point is not to allow people to make bombs
I mean even YouTube allows bomb making videos and they won't even usually allow videos of people making guns. It's just not very regulated in the US enough to make most companies care. Alphabet Inc. for instance clearly doesn't seem to give a single shit about public access to explosives information, even after the feds subpoenaed Alphabet for Ashley Dugan's Youtube information they still kept his TNT and other explosives synthesis up.
Of course, if you'll allow me to goomba fallacy for a moment, we're supposed to suspend the common HN wisdom here that companies will do anything for a profit / not care unless it costs them something, and also believe that big tech is going to go out of their way to censor the public domain patents they're already hosting on their servers.