Compressed atmosphere (air) has moisture in it which will change tire pressure more when heated than dry nitrogen. It would not be noticeable under normal conditions. Maybe if you had a Corvette or motorcycle doing a track day it might be worthwhile.
I noticed the same thing when a got a set of Cross terrains there for a Grand Cherokee. When I posted that on a Harley forum i got a lot of feedback. Turns out it is more associated with a/c and trucks and corrosion. Turns out regular atmosperic air is 80% nitrogen to start with.