It was a bit surprising as he could gone on various domestic topics like immigration or the resignation of the Downing Street adviser Patrick Rock.
It shows that Ed Miliband is not out to get cheap political points. As a mention of either of these topics would have been a guaranteed win.
It probably might have impacted on how long David Cameron will stay in his job Prime Minister.
I suspect that Ed is secretly hoping that David Cameron continues to stay in his job at least until General Election Day as he probably thinks he has a fair chance of beating him.
The actual exchanges between David Cameron and Ed Miliband was different to the weekly banter.
It was not really about who came out on top but Ed's wise decision to avoid opportunistic wins.
