I think you're being paranoid, and he's just comparing it to other Indian languages, and saying that a bunch of Indian languages descended from it (as they did,

I think you're being paranoid, and he's just comparing it to other Indian languages, and saying that a bunch of Indian languages descended from it (as they did, by way of Prakrit.) While it may be common for some Indian people to "spread ridiculous ideas about Sanskrit", a lot of people who have studied Sanskrit do come away with the feeling that, compared to modern languages in general (English, and other European or Indian languages), Sanskrit manages to pack a wealth of meaning into a few words. I don't see why a layperson saying that should be labeled as "ridiculous" and such.