Comment by int_19h
The point is that those ramp-ups indicate that quite a few people do believe that they will yield gains, if not proportional, then still large enough to justify the expense. Which is to say, the claim that "even the best funded teams are moving to hybrid approaches" is not evidence of anything.
Believing that something is the case doesn't make it so. And the available evidence is saying it isn't more than it is, which is the point. Maybe it so happens that there's another sudden leap with X amount more scaling, but the only thing anyone has regarding that is faith. Faith is all that's maintaining the bubble.