Everything is a compromise. If you tow most of the time and need a humongous FRUNK and massive payload and care less about the refined drive quality that Rivian is delivering for BOTH on and off-road use (at least based on all the initial reviews), then go nuts on Atlis!
There will always be some work truck-oriented buyers for Rivian (despite Rivian being billed as an "adventure vehicle"), and there will always be some adventure-oriented buyers for EV work trucks out there. I'm guessing that 95% of Rivian pre-order holders are NOT in that first category.
I know that since I am in the more "adventure-oriented category" and will ALSO use the truck as a semi-daily driver (or daily driver if that ever becomes a thing again), that I can get bed with less cargo room in the trunk for things like hauling mulch, making dump runs, or towing a few times a year. If that were flipped, and my actual work or job depended on a real work truck (day in and day out), and I didn't want to worry about some dings and scratches after shelling out $80K, then I would probably go with a Ford Lightening before considering an Atlis - particularly since Ford would be the company standing behind it.
I'm not seeing anything particularly impressive about Atlis at all, except some of their battery tech claims, which I am dubious about.