These FBI capabilities are all surface level/no changes, don't seem to touch NSL's, and don't tell you what services can be compelled to collect in the future if the FBI wanted to push the issue. None of these can be relied upon to be better than WhatsApp.
Question for those with the "prevent new variants by vaccinating" hot takes, how are you vaccinating a billion deer, among whom SARS-COV-2 is pervasive? Or ~1B bats? Billions of mammals? Or will you try to kill 'em all like mink?