User blog comment:B214/Volume 21 info & spoilers/@comment-187.209.22.243-20160217145113/@comment-42.112.82.65-20160217170309

So? Most of them are from the Three Factions which is one by itself, then there are only Sun Wukong as someone from other faction. Vali group is even worse as they were terrorists before and people will feel nervous about them, yet they're still in because plot bias.

One insanely strong god is enough to defend the faction, but that is the defense part, if they want to end the threat faster sending one or two elite members is a smart choice, it also shows that they do care about peace and safety of the world instead of locking their door to defend themselves while letting a bomb running around. If they have decided to work together but then they just let the problem to deal by itself? What a bunch of hypocrites.

It doesn't need to be a god, sending the head or vice chief of the Einhenjar/Valkyrie, sending a demigod hero (the Olympians especially Zeus have tons of them) is enough to show the good will and will promote them in a good image. Yet such thing didn't happen.

Guess we stick with the mc and his powerup to the very end, even this 'Issei is weakened' doesn't bring any tension anymore because we know he would somehow come back, get more powerup and finish the monthly villains (with or without ecchi technique). Same old formation which has been reused and reused nonstop.