Well, the RO set up had a 70mm lens, and while it looked pretty good, they had to crop the aspect ratio to keep it from being nauseating. The Revenant does look good for digital, I'll give it that. But it would look much better on film regardless.
I'm not saying that personal preference (or even technology bias) isn't playing a part but once again when I saw Rogue One opening weekend it had been transferred from digital to straight 70mm film stock and I got to experience a direct Pepsi Challenge between that movie and the 10 minute 15/70 Dunkirk clip that was shown right before it. RO literally looked just as good IMO.