The whole Unblock/VPN thing is an artificial solution to an artificial problem.
In the Old Days (TM), film prints cost a lot of money, so only so many could be printed for a given film. Hence Regions: Limited stock tiered through the regions.
With digital content, this model is irrelevant - so Movie Studios need to get their fat heads out of the La Brea tar pits and get with the times - once a physical movie has screened past the last region (6?) then just open to flat licensing.
The more they license, the more viewing fees they take, so they cannot really lose if they license the right way. It's not costing them anything to deliver - that's down to Netflix, Google, Amazon etc.