Earlier quoted context omitted.
Those additional restrictions mean it's not an open source license by the OSI definition, which matters if you care about words sometimes having unambiguous meanings. I call models like this "openly licensed" but not "open source licensed".
Call it what you will, but it'd be silly if Meta let these 700M+ customer mega-corps (Amazon, Google, etc) just take Meta models and sell access to them without sharing revenue with Meta. You should be happy that Meta find ways to make money from their models, otherwise it's unlikely that they'd be giving you free access (until your startup reaches 700M+ customers, when the free ride ends).
No it doesn’t. The licence terms talk about that those who on the release date of llama3 had 700M+ customers need an extra licence to use it. It doesn’t say that you loose access to it if in the future you gain that many users.