One thing is sure...Gutenberg is out there to frustrate lot of developers than making their life easier.

It's like being excited about the next big thing and then being disappointed at the first impression. The analogy is why on earth would someone enter into the world of cars late with a "motorbike" and claim that's just the beginning just manage this while we build it up into a car.
It would be better to ship a less featured 4 wheel car into the competition than a motorbike.

Why did they decide to put it so tiny in the middle of the screen with space around enough to house 2 or 3 of the editor on a big screen? Am I missing something?