Even though there's a small group of complainers (us), Toyota & Ford are smart to split their lines for the NA market. From what I've seen, most Tacomas and Rangers (honestly, all NA light pickups) carry little to no load for most of their lives, so tuning the handling for light loads makes them more comfortable for their use. Has anyone driven a new HiLux & Tacoma or new global & NA Ranger in stock form back-to-back recently? That would be a more interesting comparison to me than part numbers.
It would be interesting to compare the real world load handling of an old Toyota V6/AT Xtracab SR5 Pickup (HiLux in NA trim) with a 3rd gen V6/AT Access Cab SR5 Tacoma (or old vs. new Ranger) with both in stock form. Finding a Pickup or Ranger with a fresh OEM suspension would be difficult, though.
Run them both through a standardized course empty, again at their gross weight limits, and repeat in a marginally overloaded state. I suspect that the ride quality would be much better in the new version when empty, but as the weight increased, the old version might be just as comfortable. The new version would probably win on acceleration & braking, empty or loaded. Iirc, my '93 Pickup rode much better with a load, and my '12 Tacoma was smacking the rear bump stops with a relatively light load. Replacing the rear suspension fixed the Tacoma's shortcomings, but it's sad to need do that on a new truck.