I think only Iino would see it as buttering up, considering how honest they were about their fetishes.

Miko is suffering

Thanks for the translation.
How dare they sneakily vote for Shirogane! Iino really couldn't have known despite the banners and all...

I legit can't tell if these two are geniuses or beyond saving... Probably both (geniuses at idol worship, beyond saving as human beings)