Dj for 25 years. Started on 1200s in 1987 or so. Started Twitch Remix Service in 1992 in San Francisco. Released 15 albums and 10 cd compilations. In two synthpop bands: Eloquent and Tristraum. I use Logic for music and Serato/Traktor for djing.
I fully embrace the sync button because it opens doors for more creative mixing by freeing-up time to add more to my show. With sync and looping, the possibilities just got more interesting. For me, it's less about who's a real dj or not because they can mix.. but more of personal choice and the end product on the dance floor. If your end game is better, that is good.