I think listing the pattern repeat is enough. If you start getting into what's good for a 4PP vs. S&W/OBW and try to give every option possible, you'd be writing forever.
You can't know how big someone wants to make a quilt, or how large they want to cut the squares/triangles, or if they've figured out you don't always need the yardage to get the total number of repeats needed for their pattern (as written in the books).
I think just mentioning the 12" or 24" repeat - and possibly showing a picture of entire repeat is enough.
And the repeats size has nothing to do with the type of quilt. It really boils down to how much fabric you want to buy. So if you're doing a large quilt, you'll need the yardage anyway, so a 24" repeat isn't the end of the world.
But if you're doing a wall hanging, that would be a lot of extra fabric you're buying to get the 4 or 6 or 8 repeats.
So it has more to do with size than the style of quilt.