Clearly Man of Steel and Batman v Superman in part made a lot of people unhappy because they sought to humanize Superman in ways that hadn’t really been done before. Christopher Reeve’s Superman certainly existed in the Maggin sense, and that’s been something very hard to shake, even if two out of his four movies are loathed. I know there are purists who (more than) quibble about Superman killing Zod (but let’s be serious, that’s what happened at the end of Superman II, too, folks), but the general thrust comes from the likes of Maggin, and Mark Millar, who want Superman to exist on a mythic level. The Kents need to have died early, because they’re all but superfluous in this version of the character, not just for the fact of something like Lois & Clark otherwise featuring seemingly daily phone calls (in its first two seasons, this was a wildly popular show, proving that a human Superman can work with audiences), but that you don’t even have to go as far as Grant Morrison to establish that the powers do make the man.
It may be a Marvel mindset versus a DC mindset. I know Marvel fans like to think of their superheroes as the most human characters in comics, but they’re all defined by their awful powers and subsequent responsibilities they bring. DC’s superheroes are human first. That’s why it’s much more common for civilian love interests. Marvel’s always intermarry between superheroes. But, Clark Kent married Lois Lane. Barry Allen married Iris West (uh, spoiler alert, TV fans!). If you make Superman only about his powers, you get the Wonder Woman romance, which was fine, and probably needed to be seriously explored at least once, but it could never be the defining relationship of his life. Because Superman considers himself to be Clark Kent, and as such the love of his life is a human, too.