I wouldn't have minded if he'd stuck around. I would've preferred Clark and Lois have their own child, especially since Greg Rucka's Adventures of Superman run seemed to be heading in that direction, but once they actually had Chris, he would've been just as valid a means of exploring parenthood with the Kents as a child of their own. But then DC chickened out.
No you misunderstand the idea of Superman having a child is not disliked in fact they did it in the comics with Last Son and if not for the delays it was pretty much well received. The reason why it was disliked in Superman Returns though was not because they gave him a child but how they did it. You don't let Superman and Lois have a child with her not knowing that he is really Clark Kent or her knowing even though Superman plays dumb to the thought (much like Superman: Doomsday). Second you can't give them a child have him be gone for five years of the childs life and let another man rasie the child thinking that it is his. This is why the idea was disliked in Superman Returns because it was done in the wrong way. How ever the way it was done in the comics and how Christopher was written it worked.
Hector and everyone else in that Fate dimension seem to have been forgotten. The Helm of Fate wound up with Kent Nelson, who's not the same Kent Nelson as the original Dr. Fate.
I'm so bored of that argument. It's stupid to begin with, but Rucka did the proper comic writer thing and seemed to be setting it up so that Mxy would enable Clark and Lois to have a child.It was an interesting angle but it's utterly unrealistic due to the fact that Kryptonians and humans are very different species.
And Johns closed the book on that issue.