>>103606295
Because the west has a hard-on for lower registers and others excel at those ranges more than IRyS, notably these three. Singers like Sora or Kiara also go unsung like that because their strengths are in the higher registers, and the current fan meta is to point out someone belting or doing a more guttural singing in general.
I'd never in a million years rate Mori above IRyS, but ignorant, trannypilled westerners will.