Honestly, this ending was a total let down.
I was kinda expecting Mayu to win rinri-kun bowl, considering Koisuru metronome in the name of manga that would make it truly ironic , not to mention how ridiculously funny it would be to see Utaha senpai get cucked in her own side series as well as in Saekano.
Well instead we got some hogwash, where second heroine without any fight before any even started gave up and the main get's the spot light without any effort. Ah yeah Pure love hectopascal is a big success but who gives a damn about it anyway, it had zero substance to begin with, just a Saekano copypasta.