I remember reading about the production nightmares with these at the Chicago plant; it was a horrible debut. But bad news always makes the press.
I've seen quite a few Aviators around here and they look quite tasty - compelling on paper too.
I think they've fixed the initial quality problems. The Ford Explorer is selling very well currently (I think the best selling 3 row SUV). The Lincoln Aviator not so well. That's expected though because Lincoln always overprices their new offerings.
https://www.goodcarbadcar.net/2020-us-vehicle-sales-figures-by-model/