I agree. Remember, these endings were not polished at all; they were in "alpha stage" so to speak. If the C&D hadn't struck, and if we had time before the release date, I would have liked to polish them way more. Still, Agent 12 made an awesome work considering he coded them all in like two weeks or something.
As for Serge, Wazuki and Lynx, I don't know ZeaLitY and Agent 12's opinion but for me it was a definite no-no:
1/ These are alternate endings; Project Kid shouldn't happen in most of them. The Radius and Garai ending could have happened without Project Kid if the Einlanzer wasn't mentioned.
2/ CE was meant to show new things, not rehash events that we already know happen and that we already saw in the other games. That's why we eventually made the Fall of Guardia a seemless part of the game, totally integrated in the plot and joining several CE story arcs together (King Zeal, Dalton, Kasmir, Coyopa), rather than make it the big final scene in the ending of the game (i.e. it's a totally ordinary part of the game instead of being the "destination" of the game). It's also why we can basically summarize the game as "This is the story of Alphard" rather than "This is the story of how Schala merged with Lavos".
And I guess a 3/ would be that we didn't have sprites for Serge, Wazuki, Lynx, Harle, and adult Lucca, though if we really needed them I would have made them one way or another.