It's definitely misleading, which is probably the main reason it's dying out in Canada. It's not offensive though. I mean Natives have been able to control the definition so that groups they see as especially separate (the Inuit, possibly others) were not labelled as part of their group. The people of the Indian subcontinent seem to have likewise managed to craft the European definition to more closely align with their own.
I'm also not sold on the idea that India has massively more diversity than Europe or the natives of the Americas. I would suspect that being a reasonably similar subcontinent type affair that Europe and India probably have similar diversity, while the dozens of language families present in the Americas shows a much higher diversity there than in the other two.
I'm also not sold on the idea that India has massively more diversity than Europe or the natives of the Americas. I would suspect that being a reasonably similar subcontinent type affair that Europe and India probably have similar diversity, while the dozens of language families present in the Americas shows a much higher diversity there than in the other two.