Reo kills Nagi potentials.

Anyone else blaming Reo for this?

You see, before meeting Isage, Nagi just fed of whatever Reo is throwing.
After losing, he started to pursue his own interest and continue developing.

I'm not sure if Agi/Chris got the right idea, but better than the default of Reo backing Nagi again.

Imagine if Neo-Egoist league, Nagi without Reo in Manshine.

Perhaps Nagi will be forced to developed without being coddled. It is safe to say Nagi growth spurt was during 2nd Stage.

We missed a chance to see how Nagi develops further, perhaps chemical reactions with new people.

Isagi got Kurona, Hiori etc
Barou had the whole system, before picking Aiku, Niko, Lorenzo.
Rin have always been self-sufficient, he can use whoever he wants. Frankly he's better than Isagi, by far.

It's awful development.