I'm not up to the task of finding another image hosting site, but in the image, Discord user Kerophy asks Mike Shinoda on his official Discord server if the band will ever "release Deftest and Fuse outside of demo tapes" to which he responds that that he will "probably not release any more Xero demos"
As for your second point, the band probably wouldn't care. In the case of the LABEL however, Jeff Blue could definitely get in a lot of trouble if he lets any of them leak. Dave Garrett could probably either release them himself or give them to someone else with no repercussions, since he's not been connected with the music industry in decades. Probably wouldn't even bother Mike as long as he asks first, whenever they meet again. Mike actually does pop in the server every once in a while so maybe one of us can ask him about Dave and whether or not he can share the stuff he's got in his collection.
Here's a photo of them hanging out just last year:
https://linkinpedia.com/wiki/Relative_Degree#/media/File:Dave_Garrett_Mike_Shinoda.jpg