hahah this is so amusing.. I know that an OP isekai MC is an overused trope but this is simply amazing
It's not overused at all. (As we nearly never see it executed right.) Most of the time the MC is OPed herself/himself very soon in the story by someone else or falls into a trap, because there must be struggle for her/him. You can't really call those characters overpowered, if there are forces that equal them or overpower them or there are too simple ways to stop them. If I read a story about an OP character I want to see her/him winning.
And I fully concur with you. This here is a fine example of one way to do it right.
Let others struggle in their stead. Their only hindrance should be, that they still don't know how too fully unleash their potential, get alienated from other characters or are still growing and not there yet. Sadly those are really seldom or reeeeally bad executed.
So you left them too die and complain, that they did the same? Wonderful.
Somehow I see this ending with MC betrothed to an ice elf princess or something.
OP or not, his dick would snap off.
EDIT: (After reading the next post)
@firosahoge: Qelix um... this isnt even isekai though
Ooops!! XP Ehehehehe. Got me there. I fixed (falsified) the quote. It still holds true for "OP" characters in general though. (In my mind at least.)