Let me tell you what I think
Been in Afghanistan myself, I can tell you one thing, many people is misinformed
US enter war in Afghanistan not because anything they want to fix, but simply to pay deuce to one guy (OBL) US enter the war without any concern from Afghanistan and any surrounding country in mind.
Fact is, if US want Taliban gone and to achieve a stable Taliban, they would have another approach than what they did now. Which is simply push them back into Pakistan.
The sad but true truth is, afghani would accept Taliban to be back if that mean they would stop the sectarian violence. Same way they open the door to Taliban after the rusky gone
From what I see, whatever vibe the Afghanistan give out is a farce if you ask me. Now you see people come out and talk bad for Taliban because American is there. But what happen when they were gone? The country would go straigh back into sectarian violence.
Pakistan in this sense already say they will do nothing more than they already did to control Afghanistan (last time they got involved didn't do them any good.)
Unless you can find another country as strong as US to take the beam, you are guarantee to have a civil war 2.0 happening in Afghanistan, it will be of India interest not to get engage unless you think you can do a better job than the American.
Otherwise, you need to make sure you are betting on the right horse...as far as I see, the whole thing can go either way...