As a Hibiki fan, I'm overjoyed. It feels like they decided to make up for how bad they butchered Hibiki's characterization and screentime in GX previously. The whole Jojo-punching bit was soo S1 Hibiki, I was grinning the whole time.
Meanwhile, as a HibiMiku fan, I'm currently drowning in euphoria, not only did Miku got to play a vital part before the climax, complete with the whole sunlight/sunshine bit, but apparently she's also being set up for something big next season. Hopefully that follows through.
Someone probably rolled their sleeves and whacked some sense into the writers with a harisen or something during the production of the second half, because episodes 8-13 were leagues better than anything GX ever did, I'm really glad for it.