Debateable whether it made you better or safer, but it does give you a different perspective to put in your experience bucket, not only from the jump itself, but with the preparation and planning that goes into it, and the decision making process involved in actually pulling the handles. So from that perspective, having that in your experience bank is a good thing.
You may be asked to pass on advice in the future as well, all us old dogs are moving to the great DZ in the sky, so someone needs to pass ideas on to the next generation.
I've done several intentionals on display jumps, as well as a couple of cutaways for real, and no matter how much practice on the ground you do, nothing replicates the moment of the real thing. Used to be a requirement of our old D licence to do a cutaway if you hadn't experienced the real thing. Back in the day it wasn't common to get to D licence level without at least one mal. For me it was jump #6.
But its always important to remember, that anytime you put yourself in a different situation like this, your risk level is increased. That is why it is important to talk to the right people, get the right gear, and plan it properly. I wouldn't induce spins or anything unusual to make it more "real". It could turn to custard pretty damn quick. I jumped several torn up canopies to see how they behaved, but I can't say I learned anything special, because they were just one offs and behaved differently. I gave myself extra altitude for these jumps, so I was back at normal activation altitudes for normal deployments.
I wouldn't worry too much about it, better just to keep current, and practise your EPs regularly. When you really need them, they should be ingrained and automatic. The most important thing in a stress situation, is to make a decision, and carry it out immediately. You'll find when it turns to shit in the air, its pretty easy to carry out the EP drills.
He who hesitates is lost.....