Never said FB speed wasn't important, just that the value of additional velo from 92-95 was limited relative to the quality of secondary pitches.
Above 95, especially above 97, FB velo does matter, SD was far more effective at 99 than 97.
I think this reflects physiological limitations on hitters, they've adjusted to 95 MPH velocity, but 98-100 is probably pushing the edge for most hitters.
But, this also means that losing velo down to the "hit zone" makes a pitcher quickly vulnerable, as we've seen with SD.
And if a pitcher is dependent on superior velocity, losing it can be a rough adjustment b/c he probably hasn't developed the pitching skills to compensate.
It's kinda of crazy for those of us who've watched the game for decades, someone like Neris with a 95 MPH FB and a decent slider is a marginal long RP without his splitter, a decade ago he's be a top set up man with just a FB and slider.
Morgan was meh with a 93-94 FB and an average to plus slider, add a changeup and he might be our second best RP right now.
So what happens to Kimbrel if his 97-98 MPH FB becomes a 94-95 MPH FB?