^ ikr! The first one was planned to be released a bit after Kingdom, it was meant to be a 2CD release with a remix disc and a collab best disc, but due to the scandal it got suspensed and one year later we got Out Works and the first DH as separate releases. The following year was her 10th anniv., so I though it was fair enough to be releasing another remix album after the first, but then they just kept on releasing one each year
Maybe they prefered taking out the remixes from the singles and having them as a separate release so they could be selling more stuff? The single would keep it sales but now there'd a remix album to gain money on