I see this as a scape goating of the quants. Not the mismanagers who hired and profited from the quants. The culpability of the mismanagerial classes are being whitewashed away.
I feel the same way. They make it sound like quants are these high falutin half-Gordon Gekko/half-Charlie Epps figures who use their sheisty siren call of maths to seduce the otherwise noble and innocent investors into foolish endeavors. That's simply not the case: it was the other way around.
The OP source is one of the organs of record for a specific political set and this is probably the outlines of the (official) emerging sacrificial goat theory for the collapse. The "anti-intellectual" aspect is likely incidental beyond its nice fit with a strategy designed to deflect the certain anger and energy of the ripped off population.