That's possible, but the blog never claims otherwise. In fact it says "There are...

remram · on Jan 17, 2023

When you say "de-anonymize a Tor user", the implicit but unambiguous meaning is that you attacked Tor, not found the information from somewhere else.

Just like when you say "a BMW driver crashed into a mall", you mean that they did it with their BMW, not with the Subaru that they also own.

advisedwang · on Jan 17, 2023

The language in the blog post, "There are lots of ways to ..." is explicitly highlighting the ambiguity.

remram · on Jan 18, 2023

Yeah, maybe so. The linked slide does list "user error" as one of the angles.