UPDATE:
3 of our 4 versions have been approved and released to the App Store. The last one in wait is the original paid SKU for tvOS. It should be reviewed and released within the hour we hope. The reviews are going fast.
This has nothing to do with Apple or tvOS 13. We made a mistake when we submitted the new version for approval and it was the wrong version of the built code. We realized the mistake within hours and had a fix up waiting for review within minutes after that. The rest is us having to wait on App Store reviewers. We wish we could get client releases out as fast as we can get server releases out.
We're sorry for the problems this caused, we don't have a big history of botched releases, but it happens sometimes. Thanks for hanging in there with us. Things should be back to normal within a few hours.
If you use the free SKU on tvOS, you should be able to update right now and things will be back to normal. Thanks to everyone that reached out about this, you guys are crucial to the whole community.