Of course they can get that from ChatGPT too, but it hits different when you realise ChatGPT validates everything you say anyway.
No matter how famous something is, for every individual, there is a first point of contact. The web has been the great filter for the last couple of decades until now, and it is extremely common to discover even main stream things that way.
That's for daily news reading. If you search for news (like what happened with the Spanish/Iberian grid), you'd use Google. And you shouldn't use ChatGPT because it wastes a ton of resources to just hallucinate anyways, whereas a Google search gets you the direct links to the sources.
A lot of people are asking "@grok is this true?" under news on Twitter every day. So a not insignificant number of people are going through AI for this sort of thing.