There were definitely some mocking statements about those early promo shots of the dwarf lady. Deservedly so, IMHO, as I don't this that was what ANYONE thought a she-dwarf would look like. The character is kinda fun though.
The black elf Ranger guy is, on the amazon website, supposedly a silvan elf, so not a close relative of Elrond, Galadriel, etc since silvian elves never crossed the seas. This COULD work, if other from his tribe resemble him but I don't think that is how they are playing it.
The harfoots, who can really say.
I don't think anyone is directly attacking the actors, more mocking the writers/producers. Same with House of the Dragon, really (though that show has good reviews thus doesn't need damage control like RoP, Batgirl, or other such shows.