The other persons argument was if your harness has pins to let the handle pass handle go then it is safer because it gives you a 3rd possible release if the leash malfunctions (or you can't reach it).
My guess is it would be as hard to find these pins while being dragged backwards as it was for you to find your knife....
That's not a bad argument. My argument to counter that is if you front leash most of the time you do NOT have to fully release the kite because after you hit the first quick release you are getting pulled forward and can see what is going on, you can see maybe it is not a death loop, just a wind gust, or maybe a blown strut whatever.
If you are leased backwards, any single time you are in trouble you have to completely release the kite and go swimming. You can't see what is going on so you after you hit the QR1 and get pulled backwards, boom you have to release the kite no matter what. You can't see what is going on!
Front leash = less swimming.