Yes, the samples in EZdrummer are pre-processed. Having said that, no one will stop you from adding more processing at mixdown. If it sounds better, it’s ok to do…the audio police won’t arrest you
One day when I was at my day job, they knocked on the front door and asked my wife a few questions about the project I was working on at the time. She didn’t know enough details to really implicate me with anything, but I am more careful with my processing since then!!!
I always keep a ‘backup’ mix with unprocessed drum multi-tracks handy in case they decide to come back…..
