This is a prime example of my problem with casting 'ScarJo'. She doesn't look like she can hurt a fly. But hey - we see some boob jiggle in the fight, and that is supposed to make it a awesome.
Is this really what passes for a good fight with you guys? Really?
Um, with the phone gag it's pretty obvious this was just supposed to be a fun little reintroduction to her character, playing off of the old "tied up in a chair" cliche.
I really doubt they were going for some kind of brilliantly original fight sequence here (and in fact that likely would have ruined the joke).
Personally I thought it was a lot of fun.