quite the opposite. automatics are a bandaid that lets you get by with less gearing (numerically lower). Manuals need more gearing so they don't fry the clutch as easily when starting from a stop.
I really hate those charts. way too complicated and you start with the numbers that Jeep supplied from the factory (which SUCK). This is mine for when you're paying for gear installs (aka: spending insane amounts of money):
got a 2.5? 4.56 for 30/31s, 4.88 after that
got a 4.0? 4.10s for 30/31s, 4.56 fr 31s to 35s, 4.88s for 35+
these rules change if you're grabbing axles from the junkyard with gears already in them (aka: doing this on the cheap) since 4.10s are the most common deep gear for axles that are easy to swap in.