I don't mind the idea of either parent being scared and maybe even insecure, in the case of Jonathan... But it's a fine line and prefer him being happy at his son's 'greatness', while wondering if he should have done more with his own life. Seeing him get over or work through his insecurities is also imo inspirational.
But yeah, virtually guaranteed none of this will be in the film š
Anyway, as a Superman fanboy I personally would prefer them being perfect even if that might be boring to some haha.