As opposed to? I mean, yeah, a lot of the places marked here are bilingual and share a language with the surrounding environment, but it’s not like Spanish, Romanian or English aren’t captured here.
Well showing area that has only minority of some speakers as the colour of that language is quite misleading. Should be shaded or something
It depends. I think if both languages are exclusive to that area then yeah, flag it. If one is a larger language and the other a minority language exclusive to a region is fine to only show the minority one. Context solves the issue just fine.
You don’t know from context what the actual language situation there is with that method. For informative maps that’d be bad. That’s why shading makes more sense.