I agree entirely Becca. I love Michael and Joanna (as you know) as their skill blows me away and I find them so charasmatic in nearly every dance. (although their rumba isn't my favourite all of the time - it depends upon the performance)
BUT I completely agree with their negatives as you have listed. As you know I prefer Slavik and Elena and get moved more by the performance of other couples as well. However, I have still always loved watching Michael and Joanna, I think Joanna is phenomenally skilled and they blow me away nearly every time I watch them live. For that reason they remain one of my (many) favourite partnerships, although perhaps not the partnership I feel most emotionally connnected to.
I agree with bendymixer, other videos of them performing would impress people more than the demo last night - but maybe they wouldn't. As I have said on here before, different people like different things. I personally really enjoy watching them, others might not...and that's fair enough IMO!