I'll clarify. Gundam Seed was decent, Gundam Seed Destiny (2nd season, of which much is on that list) is pure awful which took characters we loved in the 1st season and turned them either into super spam god pilots (Kira) or i have so much angst that even the main character looks relatively normal (Authran). The "new" main character Shin is completely an Equus asinus and even when you find out his back story you STILL don't like him and add to the fact that they bring a character back from the dead with "memory" loss you get all the cliches and none of the cool.
one more time: The creators have said bending is a combination of genetics, spirituality, mentality and training. But mostly their point was that it's not pegged down to 1 thing.