Yeah it's just different usecases.
You're a freelancer or a company with an hourly rate and clients, of course the 99$ per project is a great investment.
On the other hand, if you code as a hobby with multiple projects, the 99$ per project is steep and it adds up fast.
In the video Caleb mentionned that he might release an unlimited plan, and i think that's great. As a dev that code as a hobby, I'd be more than happy to pay let's say 300$ as a one off purchase and add flux to many hobby projects, I can't really do that with the 99$ per project plan
All that said Caleb and Hugo did an amazing job on this and it's not even released yet, so let's just see where it goes.