then you are missing out.
The truck lifts a front wheel at about 0:05 or 0:06. This means the angle is approximately 53°. That's 1.18:1 (or 118% grade.)
In comparison, US military humvees are spec'd to have a grade capability of 40% @ GCW. Humvee Cobra = 60%.
Can crawlers do better? Yes. Would you want to drive them down the ½-mile gravel access road @ 2 to 6 mph to get to where that video was recorded? Well, that's a deeply personal question.
Thoughts for the genpop:
The Summit is a truck I knew I wanted but that I did not know how much I wanted until I got it.
I think it's also a truck that if you and it don't bond or click right away will probably never work for you.