You do make a good point.
I don’t know what Yoda’s story is, but Obi Wan was not just hiding. He was protecting the last hope the Jedi had. The son of Anakin Skywalker.
I believe Yoda had to make\had a connection to qui gonn. But with luke he may have been their in the end but a lot could’ve been prevented if him and other jedi stop going into exile! From their point of view I can understand why they enter exile but maybe try and undo your failure.