Current results don't matter. We are talking about a character played at the highest level vs people who know how to fight him, this is not yet the case, specially with any of the matches where those characters lost. Hell, you've made top8s with Ares, doesn't mean the character is anything close to viable.
ofc with a favorable bracket any character can squeeze into top 8s with how small this community's majors are, but i don't see DD being a viable pick to win anything significant when he loses to most of the top tier, and still does not really have the advantage vs any others
Simply put, there is no reason to play DD over any other character if your goal is to win.