I guess they view these as two separate problems: as long as we are using physical textbooks, their solution makes sense. As for safety, I think it's good for

I guess they view these as two separate problems: as long as we are using physical textbooks, their solution makes sense. As for safety, I think it's good for pioneers to go ahead while making their best efforts in safety (they discuss safety in the article). Either the government bans them immediately, or they wait until things get bigger before introducing regulation. If everyone waited until the full set of safety regulations was in place, nothing would get done.