My guess would be that the display of the communications had become quite embarrassing for Riveroaks because of the obvious appearance of failure on the part of Riveroaks to follow through with what they said. They were probably getting negative feedback about it. Like I said before, I think Riveroaks was the victim of unforeseen delays. Even with that in mind, the displayed communications still painted a very negative picture of Riveroak's capabilities. If I were them, I too would want these communications removed.
This statement would tell me that nothing has changed concerning the funding: "Relient appreciates the work being completed by Riveroaks and their dedication and commitment to completing the funding as per their commitment".