It was fine for months, until it became rather popular to point out this glaring contradiction.

Tell it to our politically correct liberal friends at Guardian, they are still using the country name. https://www.theguardian.com/world/2021/jun/03/india-covid-va...

Maybe not every copy editor there has gotten the news?[1]

1. https://www.theguardian.com/world/2021/jun/01/covid-19-varia...

The article content mentions the new name Delta, unlike the headline so I am guessing the copy editor is aware. Anyway, I guess my view is not as charitable as you as it is coloured by their coverage of events in the past.

Instead of "Indian variant/mutation" papers now use "Delta variant, which originated in India" which hardly makes a difference in my eyes.