The worldbuilding in regards to the Church of Martial isn't as bad as some other reviewers here seem to think. Besides how cartoonishly old the space Pope is and how, well, absurd the elders act, the main reason why this expansion of Votoms' in-universe religion comes off as bad is because it doesn't click in with the original series. The Secret Society were a break-off group of this Church? I don't know, it's all very obviously written in after the fact. Not that the writers for Shining Heresy had that much to work with, but it seems like overkill. The mecha scenes are good, but thelast fight between Chirico and Teitana is rather ridiculous in how the protagonist wins.
All in all, Votoms is a very hit or miss series - and this OVA sequel is very hit or miss, too. Teitana's infatuation with Chirico makes little sense, as does the Church obsession with him. It would have made more sense if they brought up what Chirico does at the very end of the series. How does Wiseman fit into their Church? Does he at all?
Not boring to watch; definitely enjoyable to sit through. But rather disappointing.