I did, yes. TBH it is very anti-Matrix right out of the gate, makes a mountain out of a molehill and it even admits that it contains FUD.
There’s a couple of things that are misleading in it (for example the section on bridges) and the critique basically boils down to “if you use the identity servers that are run by Matrix.org with your self-hosted homeserver they can see the info you send to them” and “Google Analytics in Element is bad”.
All in all I didn’t find it very convincing, and very lacking in nuance.