I never said that idea of using single number is bad in itself, what is bad is forcing this single number and it's calculation on everyone else like it is some biblical revelation instead of calculating it ad-hoc (and modifying calculation as need requires), I can only hope c-suites can add and multiply

as for if you can compare multidimensional quantities - of course you can do it and it is done every day with engineering and medical data, it's just tad more complicated than adding and multiplying so it's a no-go for c-suite

you cannot expect people earning six figures to understand actual math, can you?