Which isn't a problem for you and me, but is for the kind of person that was attracted to it because it's easier than nginx+certbot, as I said in my initial comment. I saw 2 major users of it: this kind of user, and people wanting a small simple thing to stick in their container-based setup for HTTPS/reverse proxy duties. The latter more or less automatically updated to container images that do the build instead of loading a binary and didn't have a problem with even having to consider paying. For the first it was a problem, especially since the cost wasn't really in the ballpark of "I'd happily pay that to host a small blog".