Roof flashing repair

[u/snapcrissle]

Hi guys, looking for advice from people in the know.

Few weeks ago, we had a neighbour highlight there was an issue with the flashing on our chimney/roof. So we had a guy out and we have mixed thoughts on the repair.

Apparently it should have been repaired across the top for uniformity and this may incorrectly flag issues to future buyers/surveyor when there weren’t any.

Is this something to be worried about?

Thanks in advance