This certainly is a valid point, but here you're complaining that he took the wrong political action, not that he took a political action.
The most dumb thing one can do is repeating the same operation over and over again expecting a different outcome.
He just disagrees with you. (And me probably.)
That's my problem with what he's saying it is just 'more of the same' rather than a new course in reaction to what happened because there appears to be a bug in his system after some reflection.
His response is not one that has anything to do with what happened in Paris and why, this was his position last week and it is still his position this week, hence my use of the word 'cynical'. He's even trying to blame Snowden for the Paris attacks.
More of the same will definitely not get us out of this mess, it will likely only make it worse. Let's see him argue for more up close and personal contact with would-be terrorists, infiltration, covert operations and so on. But more dragnet surveillance seems to be a broken strategy, given the evidence available.