Earlier quoted context omitted.
That was a straightforward observation that the writer of the original article was being pointlessly condescending and that they were alienating the people they were ostensibly trying to help. In general, personally attacking your audience is not an effective writing technique.
Disagree with pointless. I'm just some guy but I've noticed encrypted email booming in popularity the last few years. Seems like every second nerd I know uses proton now. Assuming these guys have been fighting the good fight the whole time, I can see why a hail mary switch in tone could be warranted. They're losing. Just staying the path and being agreeable and conciliatory would be what is pointless.
To me, the condescending tone of the writing is masking inherent flaws in the argument being made. It's hard for anyone to challenge someone who obviously knows more than them when they appear to be obviously wrong, the condescending tone discourages discourse that would otherwise have lead all involves parties to a better understanding of the technical subject.