"You should let them down" vs "Should I have let them drown?" "Maybe" seems like six of one, half a dozen of the other to me, to be perfectly frank.As I recall, Costner Kent didn’t say “Let them drown”. When questioned by Clark if he should have let everyone die instead of exposing himself and his powers, the response was “maybe”. Which makes a degree of sense in the, far more cynical, shade that Snyder preferred to cast his superhero films. Jon Kent loved his kid…but his kid is a, literal, alien with special abilities. Exposing that would have put the entire family in danger, and in THAT context, I think the response is not without merit.
And no, I didn't like it. Johnathan Kent should never be telling Superman not to save people. Aunt May or Alfred would never. And Johnathan Kent should have roughly the same role for Superman as those mentors have for their respective heroes.