Clearly the plan involves poking the bear (sessions), so that the the bear acts people are ready & more importantly expect it. If JS just went off 6 months ago, people would question the actions. The plan involves the GA so that there isn't as much civil unrest when it hits the fan.
The added benefit of having JS in hibernation for all this time so we don't tip our hand too much. The same thing with the administration, why did trump appoint known bad actors? It was all part of the plan, we had to carefully cut the strings and work in the shadows. DARK TO LIGHT!