It’s right there in the article. The “test drive” the author is talking about is an off-roading event organized by Rivian. There are several videos on YouTube about this event.
> Rivian invited me out to Colorado earlier in September to spend a few days getting to know the R1T inside and out. I scrambled up mountain passes, cruised sweeping highways, and got up close to the myriad of thoughtful features the truck has to offer.
My point is that evaluating the relative effectiveness of regenerative braking in off-road contexts requires data and analysis which would not be present in a test drive context. Speculating about the effectiveness or parroting Rivian marketing materials would not require any data or analysis.
What data and analysis do you need to say “regenerative braking is useful for off roading”? It’s an opinion by someone who finds that feature useful.
What is so hard to believe for you? Off roading requires plenty of start and stop, hence more braking. Regen allows the driver to use brake pedal less. Seems obvious that this is useful on its own, in addition to regen adding energy back to the battery.
It's not hard to understand how pedal feel-- specifically, the degree of instant, single-pedal control you get in an EV with regenerative braking-- are helpful in many contexts. It's something I realized within a few miles of driving an EV for the first time. It's an opinion I still hold after 10k miles.
> Rivian invited me out to Colorado earlier in September to spend a few days getting to know the R1T inside and out. I scrambled up mountain passes, cruised sweeping highways, and got up close to the myriad of thoughtful features the truck has to offer.