Just going with part of your equation 700000*90 comes out to 630,000 barrels of oil in the Gulf.
Thats a lot of oil in the Gulf and we can all see the effects on the surface and most of it is not coming to the surface. Plus this well has a high content of Benzene and other highly toxic compounds in it
Now I dont know if this could end up being an apocalyptic event or not. I cant see the future but thats a lot of oil and methane plus the dispersants which creates a toxic mix and clearly the Gulf is being damaged greatly.
Go over to the OilDrum where the heavy hitters are. I guarantee you they take this one very seriously and no one over there dismisses the possibility this entire thing could blow out and collapse.
The oildrum is a bunch of left wingers shorting BP stock.
You didn’t do the math either did you. That amount of oil, 690,000 barrels, would FIT in a cube 400 feet by 400 feet by 400 feet. Not much more than the cube of a football field long by a football field wide by a football field field tall.