I thought too that Kara's tango was a 40 tonight, and was baffled by Len's comments on her heel leads and foot stamping.
So I had a look back at the routine, and indeed Len's right about the heel leads, but the foot stamping was on the music accents and were executed simultaneously with Artem, so it was part of the choreography, and not a technical point!
So yes, maybe it was 9 if we are very very picky, but then again, if we are very very picky, Pamela's VW was an 8. 1 point off for the raised shoulders and occasionally stiff posture, and 1 point off for the slightly innane facial expressions.