I feel like that Kawahara Reki has no idea how the world works. Like what company would ever allow someone to just take all their data from their game and make a entire new game and based it from their own servers? Even if they didn't use their servers, they had to have it be running out of some other servers, which means that lawsuits are bound to happen and plugs are pulled.
The underworld arc was already teetering on stupid with the military not securing such huge technological research. But now, this whole combining every server based on the seed idea is totally unfeasible. The suspension of disbelief is unreal.