Has WhatsApp Suddenly Become Racist?

WhatsApp recently introduced its racially diverse emoji update for all users. Certain emoticons are now available in different skin tones.

Source: guardian
So what exactly was WhatsApp thinking when it came up with its own version of this?

There was actually complaints about the lack of racial diversity in the emoji characters which made the developers introduce a new range of racially diverse smileys. What would prompt anyone to use these different ones?

Source: IBNlive