The way I see it. Draxima wasn't bad. Also, why couldn't he have been introduced in the future? After the whole story was written. As an additional character, because additional non-story characters don't always fit into the canon of the world. You could have revealed the character and then introduced Draxim. I know several games with dozens of writers working on them. Including, as a writer, I understand that it's pretty hard to fit a character in, but it's not impossible. Hopefully it will return in the future, well, or be in a slightly altered form. Since it seems to me that if you do a poll about this character. I don't think anyone would be against him.
But that's just my opinion.