They aren't.
> The fact is, 'boring' or not, the calculations for BMI most definitely give you skewed results because it doesn't consider muscle mass.
They most definitely don't give you skewed results. How can the results be skewed if they are straightforward math from the body mass (independently of it being mostly lean or fat)?
Wrong interpretation of the values are what's problematic, not the "values". But, as I said above, professionals aren't using it blindly
> What happens when they want to get life insurance, the company blindly calculates their BMI based on height/weight, and classifies them as obese? Tada: Higher premiums.
Yeah, but this is not a problem with the indicator, nor the . It's a problem with (lack of) honesty.
> the criticism of BMI is there precisely because it doesn't apply in a large portion of cases.
My criticism of the criticistm of BMI is exactly because this is somewhat wrong, depending on what you define as a large portion. BMI applies to most people, and people who really should look at BMI for their job (i.e. doctors an nutrition professionals) are aware of its shortcomings.