User blog comment:B214/High School DxD Born Final Episode Review/@comment-24421137-20150622043958/@comment-26313098-20150622062837

You are right, anime only watchers may not get all possible hints, though even LN readers may have gotten confused. As stated in the Episode 19 blog, I think they are trying to catch up to the LN by skipping some volumes. It could very well be that they will completely ignore hero faction, so they needed some way to introduce triana, therefore preparing the setup of the Rating Game against Sairaorg. If they go on like this in season 4, they might try to squeeze vol. 10-12 in there. *sigh*

All in all I'd say it really is a disappointing alternative plot. They might have used these two episodes to show something a bit more consistent.

So lets hope for season 4. I do hope they show the Rating Game with Sairaorg, Promotion test with grim reaper fight and Jabberwoky. Well, the last may be too much to fit in IF they show Isseis death/resurrection.

So far this was the worst season plot overall. And I am not saying this because they changed the story from the LN. It is simply lacking consistency and logic quite often. So... please turn on those brains and improve the script for the next season(s).