Both skits, especially the second one, are arguably racist. I don't recall the last time SNL showed Africans in grass skirts or Latinos in sombreros, but these skits are equivalent to that.
If SNL's people were smart, they would've canceled these skits after rehearsal. That they broadcast the skits now suggests they didn't and don't see anything wrong with them.
I don't recall seeing either skit when it originally aired, but I haven't seen every SNL. The other outtakes were of skits that eventually aired, so I'm guessing these skits aired too.
For more on Saturday Night Live, see Mohicans in Saturday Night Live and Palin Rap Features "Eskimos." For more on the subject in general, see TV Shows Featuring Indians.