This is written by a quite respected cryptographer with 10 years of experience. I’m not saying we should add his quotes, but we can reference this article in the wiki - experienced users can familiarize themselves with this XMPP review for additional information. Or “Some experts believe that the OMEMO version should be studied in various clients—old versions may not have been updated for a long time, while new versions may still be in the testing phase (experimental)”.
A disclaimer in bold red font: WARNING? I think test functions should only be applied in a tester environment. I don’t think you would recommend using Whonix test functions even with a note saying ‘caution: for testers only!’. Yes, users should make their own choice, but this can also be indicated. Yesterday, I showed this to a friend who uses XMPP on his phone. It caused him surprise and now he is in doubt about which client to use - one with stable function versions or one with experimental features.
But I will trust your opinion, Patrick, If you think these are weak arguments that are not worth considering, then I trust your judgment. The opinion of a security developer is key in this matter.