I can already see where this is going.
Original MC gets gassed up by his own party and turns into the same kind of toxic asshole that Lloyd was.
Lloyd spends the back half of the story unraveling his unintended fuckup.
Weiss doesn't use his magic wall skill, because the higher he is off the ground the more mana it uses.
It would have lasted just long enough for him to land on it, then disappear immediately.
Then he'd be right back where he started, only now with no magic.
Can't wait for the epilogue when Ex and Mira are wrangling their half dozen children and Auntie Yakumo is happily living with them in a literal doghouse in the front yard.