There might be public displeasure about it, but I think behind the scenes India buying Russia oil is expected and at least to some degree accepted (or possibly even wanted).
The bigger thing is Russia not generating profits from those sales, which I am speculating is not the case at the prices India is buying at. The upside of Russian oil still being available to the world market is keeping the prices lower, something Europe is very much interested in.
Thanks for the link. That is certainly a frustrating development, since they had to sell it for a much steeper discount before as the article mentions.