I am an S-W, 100%. This article basically describes exactly how I act. I know what I am and I hate it and desperately want to change.
He's absolutely bang on that when a bullshitter hits a performance-based situation they're screwed (I'm an early career academic in exactly this situation, it sucks).
S-Ws who don't want to change may well be criticising the article, but there are hopefully some other self-aware ones too!