Though they never addressed the framerate issue, I do remember AOC getting some patches on other things like nerfing Great Fairies' busted ZR, though iirc they were also released at the same time the DLC waves were released, so...yeah.
True, though it's still baffling that all we got from it is a "here's a wallpaper with a bunch of in-game portraits, yay!" and then complete silence for about 2 months since then.