> Sometimes it’s also called “fauxpensource” because the money-making part of the business looks surprisingly a lot like SaaS — the customer pays per unit (user-seat or some usage metric) and consumes the software as a web application or API.

That's not quite what that is. Fauxpen source is when a software license doesn't meet the Open Source Definition but goes out of its way to resemble one, or is even intentionally falsely claimed to be one, in the hope that people will incorrectly consider it to be one.