The Rama Project was a special project. This might be the second instance where "all major powers tacitly conspired to cover up a secret"—the first being "details related to nuclear weapon technology".
Apart from scholars relishing the pure joy of "discovering the unknown", everyone here was extremely cautious. Their every move could potentially affect the fragile international situation at present.
Not to mention the issue of "leaks".
The fact that "aliens truly exist" would cause a huge psychological shock to the public. And this shock could potentially turn into "panic" and "turmoil".
Some informed scholars had made the opposite prediction, though. It was said that there was a report on the Republic's internal advisory stating shrewdly that humanity could use the construction of the image of "Extraterrestrial Life", a group different from "us", to reinforce the concept of the "global human community" and recommended that future opportunities for development be seized.