There isn't. Wowow is a TV-channel, the production was only meant for japanese tv, never for distribution as a live album or dvd/bluray.
Yes, there is an audio issue with the vocal channel, where it sounds like it's out of phase. Hard to fix. It's not nearly as much pitch correction as people seem to think (you can compare it with the audience sourced bootleg that exists).
I have made DT aware that there is a certain amount of demand for it, and this is part of the reason why it's now not legal to share it - as they are planning to release it at some point. Unfortunately, such releases do take time, and while that happens we play "whack-a-mole" for those who upload the tv-recording.