Which time frame you are living under? Taliban 1.0 got nothing to with fighting the soviets. They were fighting with other Afghan warlords for the power, aka civil war.
These are myopic views that Taliban wants impose their ways on Pakistan, just to sell certain narratives and agendas. First, they don't have the capacity or capability to overrun physically or ideologically a country many size bigger then they are. They cant even impose it within Afghanistan with northern areas always resisting. And how can you tell that Taliban 1.0 didnt have such views as well, which might be actually related to the status of durand line which predates them and very much part of Afghan (not taliban) psyche?
Right, you used the term "ideological" alignment, which means completely different thing all together. Glad you corrected yourself. You people keep on confusing in rather emotional stuff like IK had a soft corner for Taliban. By that account, military establishment had much longer love affair with them. what say you? Bottom line is, you have to work with what you got. You were coming out of phase, where northern alliance dominated Afghanistan literally made Pakistan hell hole with 80k dead , while under the American occupation for two decades. You only had Taliban to work with. Secure the west and focus on east. That was the simple strategy which people to this day, cannot comprehend due to their political and institutional biases, rather looking at things from what is best of Pakistan. You bringing Baluchistan in this, I am afriad is the figment of your imagination. Pakistan by en large was peaceful during IK time.