I suggested this last year https://forums.pioneerdj.com/hc/en-us/community/posts/360017720986-Practice-mode
Export mode in Rekordbox is clearly explained as only preparing ones tracks. Not to be used with a controller, so any person having that expectation didn't read up on the software.
I do think having a mode where one can use their controller to prep tracks has a benefit. I like to mix tracks to see how they sound, but I don't like doing that from a laptop. I also don't want my play count to go up or a track marked as played just because I was messing around at home.
Let's hope more in the community agree.