Be a little generous. This is a blog post, and this is the middle of a debate that's been happening for years. That backdoors are actually what this resolves to is not a controversial position, except that advocates are trying to avoid these terms. In any case, it has been discussed heavily. Not every blog post needs to go through the motions.
Meanwhile, for evidence you can read the resolution yourself and make up your mind... It is linked in the first paragraph. It's short, but here's a paraphrase:
[1] We love encryption, human rights and all that kind of stuff.
[2] Lots of people use encryption. For really important stuff, we even make them use encryption.
[3] BUT(!) Criminals also use encryption. This makes it hard for police to read their DMs even though they're just trying doing their job...
[4] We want to keep encryption, but make it so police can read criminal's DMs.
[5] Big Tech needs to do this.
[6] Regulation something something
[7] More words, no discernible meaning.
Point 4 is the disingenuous point the post is referring to. You are disappointed in a blog post that doesn't cover everything. How about being disappointed in the Council of The European Union's formal resolution demanding something that they know to be impossible. It's not even just technically impossible. It is logically impossible.
This is not the first version, as the blog post mentions. Earlier version were unpopular because banning encryption seems like a bad idea. Even politicians seems to have noticed that. This version is demanding a ban on encryption, but also demanding that whatever weaker alternative is implemented still be called encryption so people aren't worried.
Honestly, this is hideous. Whatever the merit of their arguments, this is not the way. Everything here is subtext. Nothing is stated plainly. About 40% of the text is "reassuring you that this isn't exactly what it sounds like." Quite literally Orwellian.
Like the top comment says. Let's start with them. All members who have signed this resolution can beta test whatever "encryption that only police can break" means. We can all look forward to reading their emails.