I have tried but unfortunately current version still exceeded "one printed page" requirement (several lines are on the second page, Letter, Timeless skin as it is the shortest). Hope someone could make it even shorter.
Topic on Talk:Gerrit/Tutorial/tl;dr
Where does "one printed page" requirement come from?
There is a comment after languages tag - seems it was here since the creation of this page: Please keep the length of this page under one printed page. There are other pages for longer guides.
Yes, back when I wrote it, there was another guide, and everyone complained that it's too long. So someone wrote a simpler guide, but it ended up being just as long. So I wrote one that is intentionally short! :)
Noone shall add or remove content because of a "some undefined size of some dead tree" statement.
I agree that the "printed page" requirement is arbitrary, but IMO it makes sense to have some limit to ensure the page doesn't keep growing little by little. Perhaps number of characters, or words, or page length in bytes? The latter is readily available from the page info overview, which would make it convenient to check.