There's also a lot of context assumed by authors of written music (whether tab or standard notation).
A lot of tab is fairly messy and doesn't include rhythm information, but its creator probably assumes that the reader has some familiarity with the song/genre etc., and is likely to pick up the missing bits of info from listening. I.e. the author probably isn't assuming that it's going to be sight read at speed from someone totally unfamiliar with the song).
This is also true for a lot of music notation, depending on the context. E.g. for say Irish traditional music, it's assumed that players know the general form, where to place swing/emphasis/ornaments etc., how reels/polkas/jigs should sound, etc. - so these are almost never added to notation (there's plenty of discussion on other forums/videos out there on e.g. classically trained musicians failing to play traditional music "correctly" without having a background in the tradition to teach them all the unwritten rules of the style).
A lot of tab is fairly messy and doesn't include rhythm information, but its creator probably assumes that the reader has some familiarity with the song/genre etc., and is likely to pick up the missing bits of info from listening. I.e. the author probably isn't assuming that it's going to be sight read at speed from someone totally unfamiliar with the song).
This is also true for a lot of music notation, depending on the context. E.g. for say Irish traditional music, it's assumed that players know the general form, where to place swing/emphasis/ornaments etc., how reels/polkas/jigs should sound, etc. - so these are almost never added to notation (there's plenty of discussion on other forums/videos out there on e.g. classically trained musicians failing to play traditional music "correctly" without having a background in the tradition to teach them all the unwritten rules of the style).