I only notice this because I like to schedule sim zone teams in non-conference.
In Smith, my sim opponent Georgia college was playing press even though they are remarkably better in zone and played zone last season.
I figured an aberration.
But now I'm playing Novasoutheastern, They are now playing man-2-man even though remarkably better in zone and played zone last season.
A conspiracy to get rid of zone teams?
Just kidding, but the geniuses who developed 3.0 have probably inadvertently changed some defense logic for sim teams ... and I doubt they can or will change it.