The free software banshees will call it all proprietary… It’s not that it doesn’t make sense to draw different lines, but when folks treat OSI with a lot of reverence & if they say it doesn’t match their definition, folks want want to use it or release under these titles. “Source available” is also roped in with the we-get-a-monopoly licenses & gets knocked down a peg as if “open source” is the pinnacle of freedom despite the Commons being ransacked by corporations not giving back monetary support or contributions for the labor.