I would comment but I have no idea what is going on...I am as lost as everyone else.
You covered it extremely well. Follow the money....however where does it lead us.
I surmise a lot of it is going to support the other apps so they can make a move like D.Tube is making. Imagine having 3 or 4 apps breaking into the top 2000 sites around the world. We have one and D.Tube is advancing each day by huge numbers.
I think we can cross the idea that @ned etal are cashing out....it appears there is a plan to use this SP to help things grow.
I did read one guy comment that he thought it was going to help those apps power up to fight off spam.
All speculation at this point.