Note that I used "technically" as the opposite of "typically". My suggestion is to care less about being in a category you don't want to be in when you are different from its representative members where it matters to you. (In this case the category is source-available licenses.) Focus your advocacy on how you differ instead of arguing membership. ("Yes, we are a source-available license. Don't let it turn you away. There are critical differences between us and source-available licenses you don't like. We are better than old read-only and new Commons-Clause licenses because..."—not literally this, but that's the idea.)