They've met the real Pieyon, how dumb are Ruby and Kana? Aqua's build is nothing like his.
After sitting on their butts for so long, its nice to see Ruby's side of the story take off. We've already seen Aqua be a part of 2 TV shows in that time.
Pieyon (Aqua, CV Otsuka Takeo) did run 10 laps on the slope with the girls. Something that would be in line with what Pieyon (Pieyon, CV Murata Taishi) would do.
Dude method acted so well their brains probably rewrote their memories of actual Pieyon.
Given that it's rare for anything poly to take off, I get really torn being reminded that Ruby is still in the race for Aqua
I found recently that I really cling to characters who barely get the opportunity to get appreciated for all of their hard work, so I'll die if Kana doesn't get to live happily!
I guess it's not out of the question that the author does something out of left field, but tropes indicate that since Aqua has loose ends with Ruby from pre-rebirth, that they would find each other to love each other again