Yes but restating the obvious sometimes helps to underscore who provides free work for whom. In this day and age it is often the 'user' who does the free labor. Especially, when there was normalized narrative (even before LLMs - with the crowd source) that user is the one being served.

I totally agree with you. But the OP comment was not that, it was hinting at the fact it would always be used, as they did not add 'in the free tier only' to it.

So while restating the obvious in these cases is very good, it's also good to point out when.