They did describe why briefly on reddit, saying it drew too much attention: https://torrentfreak.com/images/aaconf.png

I guess I'm a little surprised that they felt this release was too hot. I'm not really surprised at the response from the music industry, but rather I thought AA was more confident in their opsec/safety from this sort of threat.

	▲	Gander5739 4 hours ago \| parent [-]
		I would assume it's moreso they don't want to lose their domains too quickly. Though they've only given one sentence to go off, so it's hard to speculate.