it isn’t, it is you who is argu(ng you meant something other than which you wrote.
the use of the word particularly, means especially. So for example, I didn’t find last nights curry particularly spicy,
or I tried the skirt in, it was not particularly tight.
it means very or especially. It doesn’t not mean in comparison to other curries or skirts.
and yes they were particularly overweight in comparison to the rest of the population. They were significantly morbidly obese. The average dress size of a woman is 16 in the uk, way smaller than the lady. And the man took a 6 x XL top, this is not the average size of men in the uk.
if you think it is, your view of obesity is indeed skewed.