lol I think the only reason you're being downvoted is because the common belief at HN is, "of course marketing is lying and/or doesn't know what they're talking about."
Personally I think you have a point.
I didn’t downvote but s3 does have low latency offerings (express). Which has reasonable latency compared to EFS iirc. I’d be shocked if it was as popular as the other higher latency s3 tiers though.