I'm not talking down, it's clear that the commenter hadn't understood the article. And there really is no shame in that.
Further, your linked comment seems to be exactly what they're complaining about - Textmate good, Telegram bad. It doesn't explain why and why turns out to be quite hard to explain succinctly.
With all respect, crypto (and broken crypto) is wrt difficult to explain in a user friendly way to a lay person without just ignoring the technical details. Once you do that, it really is just "fuck telegram use snapchat", which doesn't help anyone... I am going to give it a bash tomorrow to try and write the article you are after. Good technical writing practice :)
What makes the Article here not sufficient from your perspective?
The problem isn't that potential users are lacking anything. It's that nobody on our side of the table has communicated clearly and succinctly. https://news.ycombinator.com/item?id=6941007