> That's an endorsement of what the tool outputs as advice
That's not even close to true!
Even if you've been living under a rock for the last 5 years and didn't already know these models are not reliable, pretty much every provider has a disclaimer next to the chat box informing you of that fact.
A small disclaimer under the main flow that also acts as cookie banner doesn't outweigh the many, many other statements claiming capabilities. It's a minor undercutting, sure, but it's perfectly possible to have all sorts of disclaimers [0] while still keeping the point clear.
[0] https://www.youtube.com/watch?v=KivCRqfFcqY