It was tongue in cheek, and you make a great point, the idea every Indian or every European is the same is absurd.
That said, my comment was pointed more towards NASA and the West generally. I have been getting the sense that NASA don't like the demographic of their organisation very much lately which I think is sad given their accomplishments. Were this a video from a NASA control center I expect a lot of people would be commenting on the colour of people's skin and that's a shame. I have been rightly downvoted here for this.
My comment was in poor taste, but I saw an opportunity to poke fun at the absurdity of the Western view of diversity. For whatever reason I've noticed we seem able to recognise the absurdity of the claims we make about diversity when it's not in a Western context. Eg, the idea that to be successful at anything you need people with different skin colours involved is clearly not true – and it's sad this idea is even being entertained by an organisation as well respected as NASA. They should care about hiring the best individuals the US has to offer. At least in my opinion.