> GitHub has still been managing the orchestration and monitoring of runs that you run on your own (or other cloud) hardware. They have just decided that they are no longer going to do this for free.

This argument is disingenuous. Companies pay GitHub per seat for access to PR functionality etc. What's next, charging per repository? Because of a decision to no longer provide the repositories "for free"? It's not for free, you're paying already, it's included in the per-seat pricing. If you charge per seat then sometimes there are users who hardly use it and sometimes there are users who use it a lot. The per-seat pricing model is supposed to make the service profitable overall regardless of the usage levels of individual users.