Here is my hot take. Strictly speaking for APS, this funding model does not seem to be a big deal. If you are an active physicist in research, you are very likely to be part of an institution that has a subscription to the journals (university or national labs). If you are not an active physicist in research, the papers are probably prohibitively incomprehensible to you. I also think it makes sense for a society to publish journals. Societies facilitate the communication of research progress. This is clearly one of the goals of conferences. Papers in journals are usually a better format for communicating advances (more detail, can refer back to it at your leisure, peer reviewed, etc)