I don't think the Nintendo DS / handheld gaming device comments were about keeping resource usage small. Outdated browsers don't support all the same APIs that

I don't think the Nintendo DS / handheld gaming device comments were about keeping resource usage small. Outdated browsers don't support all the same APIs that the ones today do. Typically, businesses will choose a cutoff that supports most traffic they receive from their users. Without analytics, you can't determine this cutoff. It varies wildly from product to product.