True.
Do you think India is playing brinkmanship as well? They outnumber and outgun Pakistan considerably. If India were to advance, as it threatens, Pakistan's only resort could be nuclear, and then obviously India would respond. But aren't Pakistan's non-diplomatic choices pretty much all or nothing?
Pakistan has the choice to stop arming terrorists and guerillas in Kashmir. That's a non-violent solution as well. In fact, it would remove all threat of war. But, they don't want to do that. So, they are left with an all or nothing situation.
IMO, India knows that they have to sit and take it. They are just going to grumble a lot while doing it.