Actually, this makes sense. Pakistan is in shaky repore with
Afghanistan right now. The more in charge the Afgans get in their own
country the less they will tolerate from Pakistan who harbors and
nurtures Afghanistans enemies.
From my own experiences with Pakistanians, I notice the outright hatred
is really one way for Indians. It's not just Kashmir that is the
problem. I think the Paks believe they should rule India since they
really did at one time before the British. And example of this is it's
hard to tell a Pakistanian from an Indian since they may wear the same
head garb and have pretty well the same features. When you approach and
ask where they are from, make sure you say, "Are you from Pakistan or
India". Never the other way around. An Indian may smile and correct
you that he's from India. But a Pakastini may get real offended and you
just made an enemy for life.
In this case, an enemy of my enemy is my friend might be the case. And
it gives Pakistan more to think about before they cause trouble.