Out of curiosity, are there any negatives for everyone to funnel their DNS traffic through a single provider? Might be paranoia, and it may in this case just be

Out of curiosity, are there any negatives for everyone to funnel their DNS traffic through a single provider? Might be paranoia, and it may in this case just be putting all of your traffic through company_a vs all of your traffic through company_b scenario, but I've been curious since this was announced.