I've heard "Wow, you speak English better than I expected!", "You have no accent at all!" and similar said to Indian and Asian colleagues, some of these colleag

I've heard "Wow, you speak English better than I expected!", "You have no accent at all!" and similar said to Indian and Asian colleagues, some of these colleagues were born in the US and for all intents and purposes shared the same American childhood as you and me. Is it racist? I don't know. It does imply a ready and closely-held stereotype, though.