Kind of hard to have the will they/won't they? trope work with Clana at all
When we all know he ends up with Lois, everyone knows Lois Lane is Superman's love interest, when that's such a commonplace in pop culture once again makes Lana's stay over welcomed because it's no surprise he doesn't end up with her, so knowing their fates takes you out of the experience of watching them.
Which is a problem with prequels knowing the the character's fates, it's like knowing Captain Kirk is gonna be captain of the Enterprise after Captain Pike.