That sucks mightily.
Three things are concerning in particular:
1) Any personal communications many people had with Arnie might now be in the hands of CoS too.
2)
If (big "if") not only the domain but also the rights to Arnie's intellectual property have been handed over to CoS, this could mean that from now on they have the legal rights to prevent any of it from getting added to the internet archive.
They then probably also have (limited) means to threaten whoever sets the materials online.
Now,... consider that most of his materials is decades old, and CoS, as dysfunctional and chaotic as it is, does seem to tend to focus on actual current (perceived or real) "threats" with its harassment and PIs and sleazy lawyer letters (and killing pets).
If they actually start going after people who are webbing the contents of Lermanet, this would, admittedly, make even a not very tinfoilily inclined person like me tend to think that not only CoS, or other cults for that matter, have a vested interest that some of the materials that he webbed, gets suppressed. That could concern materials on hypnosis, psy ops, government involvement and corruption, that sort of thing.
I mean, it would be ... interesting ... if they try that.
3) As others already noted (at the Underground Bunker, I think), sadly Ginger might not even be able to stay in touch and have a real relationship with her disconnected family members. More likely there will be or was a superficial reunion, and from then on it will all slowly or swiftly go downhill again because worlds are colliding and eventually the culties will disconnect again in a hissy fit, and it was all for naught. I wouldn't want to be in her shoes when
that happens...