Pakistan's move cannot be justified by any means. Distrust is no excuse for crippling the valley for 20 years and poisioning the minds of people who have few other sources of information or ideas.
Has India ever tried to capture AJK and Gilgit and other areas, even though it considers these areas as legitimate parts of India?
India can just as easily accuse Pakistan of dilly-dallying on the issue.
Infact, India can accuse Pakistan of sabotaging the process by completely altering the demographics of the state, and preventing any opposition to its rule by a strict clampdown on any freedom of speech. By draconian laws which make any opposition to Pakistani sovereignty in the region illegal.
Pakistan is not the one adamantly opposed to holding a plebiscite in the region - mandated by both the UNSC resolutions and the very instrument of accession that India claims gives it a right to Kashmir.
The issue has been discussed several times, proving Pakistan did its bit in terms of withdrawing troops from the territory, and with a letter from the UN officer in charge of monitoring the process (see UN resolutions explained thread) indicating that he did not believe that India had any intention of following UN resolutions and demilitarizing the region and implement UNSC resolutions, though Pakistan had indeed started to follow through with what was agreed.
This isn't about what you think or what mythical argument you can conjure up - history and the records speak fro themselves as to who "dilly dallied" and was not serious and was insincere in implementing the UNSC resolutions.
The people of Kashmir are not children, it is pathetic how you choose to discredit their lack of interest in being part of the Indian Union as "poisoned minds" - its a shameless excuse and validation of the fact that India knew it never had the hearts of the Kashmiris, that it never had a legal claim to the territory, and therefore chose to unethically, immorally and illegally ignore the UNSC resolutions and occupy a land against the wishes of its people, and in violation of the clauses of the instrument that allegedly gave it any right to that territory.
Its Pakistan infact, which refuses to acknowledge the views of the other party by constantly trying to capture the valley by whatever means possible and incubating numerous Jehadi groups within its border to unleash upon Kashmir.
You conveniently forget that India has never crossed the LOC of its own accord, or tried to send militia across in order to do so.
India is, by far, the more responsible party, and the world recognizes this.
Pakistan has only done so after the it was clear, as indicated by the reports from the UN itself, and other failed attempts to come to a resolution, that India was not sincere in either demilitarizing or holding a plebiscite.
There is nothing "responsible" about deliberately flouting UNSC resolutions, about flouting the
requirement of a plebiscite in the instrument of accession, about initiating war to dismember and possibly destroy a nation in 1971 and about occupying a people and their land.