This:

> Everyone in the tech and media world is dead set on this being a bubble.

is completely orthogonal to this:

> Yet, even now, Fable is able to do the work of 4-5 engineers when used by a single senior engineer.

The industry being in a bubble or not is irrelevant to the tech being good or bad. The dot-com bubble popped (and was a bubble) even while the tech was fit for purpose.