I will tell people to not read resources that state blatantly incorrect information as facts and don't even bother to cite where they got that information from, especially when the actual facts can be easily checked by anyone since all the information about how those firmwares work have been publicly available for many months now and the phone is already in hands of many users who can check it themselves on actual devices. It's not a matter of opinion or interpretation where my affiliation could actually make a difference, that post is just demonstrably false and not worth anyone's time (and if anything, the fact that I work for Purism on the Librem 5 makes my position stronger, because I know how these phones work).