> As far as I understand it, the stance of the 'Open Source' crowd is that if Amazon can't make it one of their AWS offerings then it isn't true open source, and they'll get very upset at you if you claim it is.

You don't get to just redefine terms if you find them inconvenient and people are right to push back against such attempts. If you want something else, put in the work to get mind share for your model instead of trying to catch a free ride by taking over an established one.