I don't think plans count.
I don't think plans count.
Personally a lifetime of learning to be cynical makes me think that BFR is too awesome to be true and that it will never happen. Maybe BO's careful approach and Bezos' deep pockets will let them succeed where SpaceX will ultimately fail.
On the other hand, SpaceX has not yet given us any concrete reason to expect them to fail. Quite the contrary, in fact.
Operationally though, I think the jury is still out on how much money SpaceX can pull in there. At 22 launches per year that would be nominally $2.2 billion in revenue per year. Make three of those launches Falcon Heavy and that takes it closer to $2.5 billion. How much of that ends up on the bottom line is a good question, I'm guessing we won't know for sure until the S-1 drops.