I would think all AT dancers will find fault with the technique and how obviously it was choreographed
I have no objection to it being obviously choreographed. Even pro AT dancers choreograph their stage performances. I also wasn't finding fault with his non-perfect tango-specific technique because I wouldn't expect it to be otherwise.
What I had a problem with was how the two of them didn't look like they were dancing together and how exaggerated she was compared to him. I actually thought it was a failing of the choreography and execution by the pro which failed to make him look good. It seemed to me as if it were designed to have her cover for someone who couldn't do much of anything (which we know isn't the case) rather than designed to make it seem like he could do a LOT.
So my criticism isn't even tango-specific.