Since you've restricted new downloads, people can't get your game. In fact they can't even tell your game has any downloads! Therefore, your game doesn't show up in searches. It will once you allow downloading again.
Viewing post in My game does not come up when I search
Yes, exactly. That's because the search is intended for people to find games they can actually play. (Or books and comics they can actually read.) Having a placeholder page is fine, but then you'll have to share the link yourself. Besides, as long as the game is listed on your creator profile, search engines will pick it up. So it's still useful to have it.