Sounds like the instancing isn't working as intended, but that does sound like how Conflict Zones have been working for the past month or two.
Because you arrive in Conflict Zones neutral, you can gain distance before one side turns hostile. You can't do that with Crime Sweeps or any Power Play Combat Zone.
One piece of advice I've heard in relation to other drop down sites: as you approach the target, slow down as much as possible, unlock the destination, pass it and drop down just beyond it. The goal is to land in normal space 20km from the destination. That will give instancing time to spawn targets hostile and friendly to you without you being in the middle of them.
Hope this helps. (And please, focus on the 169 G. Canis Majoris expansion if you can.)