You know I havn't noticed because I havn't been able to play too much, but the changelog states that your wonderful phase inhibitors are only going to block transit to your own lanes... meaning enemy fleets in a system with a blocker can still retreat to neutral or their friendly systems.
If thats true I have to say Im VERY against it.
1. I don't think it makes sense.
2. Its very expensive for something not half as useful anymore.
3. There is less reason to scout target systems now.