Don't worry you aren't the only one who finds it odd
TB goes down and "magically" devs and fixes starts to appear, what a coincidence!
He decided to disappear again even before anyone started arguing with him on this thread so,from the beginning, he didn't have any intention to help the scene.
And to be honest i don't think we need him at all since even long before the whole kakaroto thing he was already getting on everybody's nerves with his useless hints(that nobody even knew if they were true) and his "i have this awesome exploit x but i'm not going to release it" tweets.
The scene doesn't need devs with huge egos that only knows how to boast and never share any of their findings.