>>Anyone that knows more about this?
Yes, I do, and a lot of this has to do with internal Dragon company politics and structuring which I am not at liberty to totally discuss, not being affiliated with them.
Let me just say that a lot of the Dragon figures' work (and other figure companies as well---the box art, sculpting, design, ideas, etc.) are not made in-house but contracted out to the world's artists, usually the same ones. These artists, sculptors, and designers are getting to or at retirement age now since Dragon figures date back to the mid-1990s. Therefore, I would assume that Dragon didn't search for and hire new artist contractors to work for them. It's as simple as that because as artists age, their eyesight, mood, mentality, and fees increase or decrease. Other companies have their own artists (contracted out to the world or in-house) to work for their figures.
That is why and how many of the "Old school" figure companies that we've known back in the 1990s and 2000s no longer continue as these owners, sculptors, and artists have "Hung up their hat" and decided to retire than to restart their business despite postings that they are returning.
Of course the "Official explanation" is that plastic figures aren't selling well, or that they cost too much to produce for the return value and thus one should seek out resin figures. That's the reasoning from a business standpoint.