I'm not familiar with the person behind the tweet, so I don't know any more than what the quote says. But I'm saying that if an individual paper says a thing, and that thing ends up being useful, then how is that not valuable? It could end up being wrong, but so could anything else you pick up from anywhere.
In some instances, it won't end up being useful because it's only relevant to someone in a lab full of million dollar equipment. But that'll only be the case sometimes.
Some papers are super important! Some papers aren't. (from the ice age... to the dole age...) "Being a paper" isn't a very meaningful metric. That's all that's being said.