Edit:I counter with anyone who lifts and play sports and is 5" 10'+ will hit < 25% body fat and a bmi +30. You only need to be 225 pounds and at 6" 1' to be bmi +30 at 5" 10' that's only 210. I saw that fairly regularly (or at least I did precovid) at the gym.
Yeah, I saw (pre-covid) it all the time at the gym, at amateur sports leagues, and at health food stores. It's also worth noting that my zipcode also has a significantly lower obesity rate than the national average. If I were to go to an Alabama Walmart the fit & muscular people people would be much more uncommon.
Edit: It is fairly easy to be < 25% body fat with normal musculature that accompanies normal weight lifting and cardio routines 4 times a week. That will get you to a BMI +30 at 5"10 +
Armed with that, I'll choose a p value myself, as to whether it's rare. Anecdotally, I agree, but I can't be sure that I am in contact with a represeentative sample.