You are inventing a problem to justify your dumb advice.
He's actually right for my application. If I regeared as recommended here I'd be at 3200 rpm at interstate speeds if I drove slow and stayed at the speed limit.
My 32 inch tire, 3.73 gear combination has me at 2684 rpm at 80 mph in 6th gear with the NV3550 manual transmission. If I want higher rpms I can shift down to 5th and be at 3800 rpm.
That's the beauty of a manual. I set the rpm. Not the rear differential gearing. And it's the point being lost. If you drive an automatic regearing is your answer. If you drive a manual, shifting at the same rpm after tire changes is your answer.
Off road if you have 3.73 gears you can buy a 5:1 or 6:1 atlas transfer case to compensate. They cost the same as a 4.3:1. Then on road your jeep drives closer to stock.
But we're mixing advice. Just like the OP breaking down by engine and transmission, we need to add use categories. You can compensate for different on and off road performance issues with different equipment modifications. Axle ratio is only one of several in the powertrain.
With a manual transmission, I can compensate for 30" versus 35" tires by not shifting until I reach the same engine RPMs. Doing so holds the final gear ratio from engine to tire at roughly the same for a given engine RPM and the engine doesn't see too much of a difference. If I regear the rearend for 35" tires I'd likely shift the transmission earlier into a higher gear. Effectively wasting some of my regear.
Automatic transmissions do not give you that sort of flexibility unless you own some of the newer models that allow you to electronically hold the gear.
First gear takeoff with the manual 6 speed and larger tires might be a point I can't control, but 1st gear is already low so up to 35" tires shouldn't be noticeable. I might not have to shift before I get through intersections anymore. But regearing has similar affects on the high end side when you get to that limit.
When we lay out our gear recommendations by transmission, it's helpful to add the gear ratios of each transmission gear. It's why grim jeepers site is so helpful. I can look at my individual traffic patterns and find speed rpms for each gear point. I'd hate to select a rear differential gear that had me shifting up and down between 2nd and 3, or 3 and 4, while stuck in traffic during in my normal daily drive. Who needs that sort of constant clutching.
I'll let everyone look at the charts and base their recommendations off some generic internet information. But it's never been my style not to think it through completely and tailor any final solution to my specific needs.
If I leave my 3.73 gears in and put on 35" (likely 34") tires my engine RPM at interstate speeds would be 2450 RPM and I could stay down a gear and rev up to 2950 RPM if needed. Not significantly different than my current setup which works for me all around. Then when I go transfer case shopping I'll get a 5:1 ratio instead to compensate for my rear differential gearing. That would come close to doubling my current crawl ratios.