If the PR stuff isn't for you, fine, ignore that. Take notes on the parts that do matter to you, and then validate those in whatever way you need to in order to assure the continuity of your business based on how you rely on Docker Hub.
Simply the phrase "consumption limits" should be a pretty clear indicator that you need to dig into that and find out more, if you rely on Docker in production.
I don't get everyone's refusal here to be responsible for their own shit, like Docker owes you some bespoke explanation or solution, when you are using their free tier.
How you chose to interpret the facts they shared, and what assumptions you made, and if you just sat around waiting for these additional details to come out, is on you.
They also link to an FAQ (to be fair we don't know when that was published or updated) with more of a Q&A format and the same information.