They were definitely overloaded. While driving in lap30+ they were still dishing out tracklimits for lap 11. They had a huge backlog to get through. After about lap 35 it looked like they picked up the pace, but seeing how many tracklimits they must, I think the stewards got a hurry up and became a bit sloppier. Although the last part is just speculation by me.

How much of this is going to be part of the free Patch and how much is going to be included in the DLC.

I know some overhauls will be part of the patch (Police rework and vehicle combat) but I can image they wont put everything of this list in the free patch.