I believe this is wildly mistating the relative strength (in terms of both size and financial capability) of Norcal Premier vs. CalNorth (and vs. MLS N).
This is the schedule for NorCal Premier for the fall.
This is the schedule for just the NPL portion of NorCal Premier for the fall.
This is the list of member clubs. There are hundreds of member clubs, with many thousands of teams.
CalNorth is dying, and lost virtually all of their competitive clubs as they have progressively moved over to NorCal Premier over the past five years. MLS2 was a last gasp for the organization to try and stay relevant, and it remains to be seen whether it will be a successful gambit for them. MLS2 is a very small fraction of the size of NorCal Premier, and might not be enough for CalNorth to stand on their own - and will likely require MLS to subsidize them almost entirely for them to continue to exist.