I took that to be because the poster confused the G20 in general with Trump canceling his meeting with Putin.
I think one eye always has to be on the possibility that Mueller is keeping incriminating evidence about the CF from becoming available.
So Mueller can collect incriminating evidence and sit on it under the guise of an ongoing investigation. Mueller than chooses what to make available to the courts. Maybe a lawfag can chime in about how that would affect discovery. IOW, if Mueller doesn't use certain evidence when presenting his case then how do defending lawyers present it if it isn't available via discovery and government agencies have a lock on who accesses it?
So I have to hold out some hope, at least, that this is a blockade breaking action by Wray.
Justice system is just fucked up. No chance for any type of fair litigation without access to the power levers.