Article 370 was always framed as a temporary provision under the Constitution itself, and integrating J&K under the same laws as every other state ended a 70-year anomaly that had limited property rights, outside investment, and central welfare schemes from reaching the region equally.
I don't know, it just feels like it was done without really asking the people who actually live there, and that seems like a shortcut. If it was such a good idea they'd have handled it more openly instead of the lockdown and communication blackout.