Yes, the assertion that we don't explain what the risks we are talking about are, and that we haven't explained over and over, why we object to 'cis' is a very good example of the surface level engagement TRAs have with anti-Genderist ideas.
When I look at their articles, believe it or not, I'm genuinely trying to understand the thrust of their argument, trying to see what has brought them to their conclusions. This means I am not looking for gotchas, so I need to engage with the ideas. Sadly, so far, the thought processes and language used are always unevidenced assertion, a lot of quasi-religious statements and sometimes quite deliberate confusion.
What I see, time and again, when they attempt these rebuttals, is a lot of huffing and retreat into cult mantras - and corn dolly after corn dolly which betray that just haven't really understood any of these basic arguments that we apparently use for mendacious purposes...
This video supposedly looking at Magdalen Berns' YouTube is a good example of this veneer of rebuttal, without any actual engagement at all.
Basically, the most useful thing to keep in mind is that this is a neo-religion, and when you read these articles and watch these videos, you are seeing fundamentalists desperately trying to deal with their cognitive dissonance.