Even on longer fights, like Archimonde, the vast majority of top logs use Crusade. Anecdotally, the dps loss for me when using DP is very visible. https://www.warcraftlogs.com/ranking...ec=Retribution
And keep in mind, trying to get good logs favors RNG mechanics, because parses with good RNG will be closer to the top for what should be obvious reasons. The fact that there's only 1 DP in the top 20 is very telling.