As someone who tutored first year MBAs at one point...
My observation in general was that most people could at least muddle through most classes, even if they were at best mediocre students. But some subset of students pretty much froze at anything beyond the most basic arithmetic--and then probably only because they had calculators.
Whether you call it aptitude or just a phobia about math, it's there.
I even had project groups of generally strong students. But, still, as soon as things got into more complicated spreadsheets, operations research sort of topics, etc., I usually ended up doing more than my share.
Over the years there have been a number of "My first year at business school" sort of books and the common theme in all of them I think is "It was the math that got me."
Then again I guess you could always buy talent to shore up your insecurities.
Honestly, anyone who goes into the corporate world and, outside of pure creative roles, thinks they never will have to deal with big spreadsheets associated with budgets, sales forecasts, and the like is going to be very disappointed. But that doesn't mean most people need to deal with anything that's complex mathematically.
It doesn’t feel necessary at all where I am now.
I also posit that as bootcamps grew - the quality control and quality of hires(students) decreased with the continued pressure of growing for their investors. Leads to bad outcomes.
It is not dissimilar to when a company blitzscales and the quality of incoming hires diminishes the further down the graph you go. I realize its a bit harsh of a comparison but I do tend to find the earlier hires at solid companies typically have something the later hires don't (though many of the later hires are quite good at their specific roles).