There are two different issues we don't want to conflate. Encrypted traffic is a problem because once you allow it, there is no way to police abuse of the spect

There are two different issues we don't want to conflate. Encrypted traffic is a problem because once you allow it, there is no way to police abuse of the spectrum (in the same way you can tunnel almost anything over ssh). If you allow encryption, then the ham spectrum just becomes an open free for all. The second issue is proprietary protocols. If the goal is to support experimentation and emergencies then all protocols used should be non proprietary so that all who want can learn and be involved.