alt Hacker NewsI'd be happy for someone to find more data. I just followed the links: the article links to the release [1] which contains the same quotes. That release links to the paper, published yesterday [2]. The paper contains a section "Data availability" which links to the dataset [3], and it also explains in detail what is inside, unambiguously referring to that dataset. The gizmodo article also directly links [2], so there isn't much room for ambiguity there.
I think the clue is in the sentence "this map is actually a high-level visualization of the data Vulcan provides". The source data is terabytes of data, they boiled it down to a couple of maps with 1 square kilometer resolution. Maybe the next data releases will contain more.
I don't have a clue how we go from this dataset to "down to every city block, road segment and individual factory or power plant". I guess some refineries can be measured in square kilometers, and it's a pretty good resolution for looking at highways, but other than that it seems like an exaggeration.
1: https://news.nau.edu/gurney-co2/