I just thought "meh" - because the writers have taken the obvious stereotypes and done nothing with them. They simply have actors mimicking the traits and while I don't think it's done maliciously or with any intent to offend - no original humour is added either. It's just dull.
Compare with The Onion's "autistic reporter" sketches: they've also taken the obvious, stereotypical traits - but wrapped them up into original and funny situational sketches which actually use them for comedic effect, instead of expecting them to be funny on their own.
(oh, and Robdemanc - "you're welcome"
)
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Giraffe: a ruminant with a view.