Contrary to your belief, there is indeed a Taliban and any contact with them will only act to legitimize them.
The Afghan groups have formally renamed themselves as non-Taliban connected, the Tareek-e-Taliban is the only group wih Taliban in their name and that is only a loose coalition in Waziristan. 2/3 of that group is now neutral and watching the other third (Mehsuds) be attacked.
The label "Taliban" has no operational significance.