The scare part refers to warning dialogs that iOS would pop up if you used a link to an external web browser to collect payments. It would warn you that Apple wasn't running the payments and use scary language warning you about potential fraud, etc. to try to scare people away. They would also demand a 27% fee from developers for collecting money on the web outside apps if users were paying from following that link.
I've been following this project for a while now, and it's incredibly ambitious. It will take a while to reach its full potential but Jarred is doing an extraordinary amount of very good work on it, and I think there is a very good chance this will turn out to be a pretty big deal.
I think the way to think about this is that there are some people who figure out ways to do things or invent things that just wouldn't be figured out or discovered by other people.
So, it's not 10x or anything-X even, it's just that, if the stuff that can be uniquely provided by "10x" people is important to you, then you need someone like that. 10 1x developers aren't likely to give you that (except to the extent that you have 10 chances to discover that one of them is actually a 10xer on some dimension).
One of the big focuses for us this year is to make that experience much better.
We've already taken some steps. (We now just give you a regular React Native project if you need one), but we plan to keep working on this stuff until you can get all the power you need to build something like Screenshot Hero with the ease of use of just making a website.