It's not that they missed it, it's that they never had it.
The heroine is not omnipotent, not a novice, just a very ordinary girl. The male protagonist is not omnipotent, imperfect, and has shortcomings.
The marriage between the male and female protagonists is also the kind that was commonly seen in ancient times. The difference is that the female protagonist has worked hard for their marriage.
If you don't like it, enter with caution.