The decision might seem strange, but I think the rationale behind it is sound:

"Covid-19 variants to be given Greek alphabet names to avoid stigma" https://www.theguardian.com/world/2021/jun/01/covid-19-varia...

Apart from the stigma it was causing Indian people it was making a lot of people think it was a problem confined to India.

Were you not aware that the Indian government threatened social media platforms that allowed users to identify a variant as the 'Indian variant'?