True to some degree.
From another view, Hari Singh realized that Kashmir was a buffer state between India and Pakistan. So he wanted to play double aka play India vs. Pakistan and bid up his value.
That way both India and Pakistan would shower him with roses and gold, and he can sit in Jammu or Sri Nagar and have fun.
This was not two different from the way Afghan leadership who realized that they are the buffer state so they could play a double game with Pakistan and India, or US and Russia.
the problem with this approach is that a lot of time, the buffer state overplays its hand, and as a result gets run over by bigger powers.
This is the lesson in any game. That you can bluff, but never ever over play your hand, because you can very easily lose your own pot, pan, and everything in between.
But from Pakistani point of view, the only thing we should do is to analyze what MISTAKES WE made in case of Kashmir, and try to avoid them in future.