#meanwhile marinette is doomed to fail

Adrien didn’t need to swap places with Felix to stay in Paris. Hell, it likely would’ve turned out better if he had just sat it out on the train.

Adrien not swapping out with Felix means Ladybug sees he’s affected by Risk when she sees him at the train station, and therefore likely doesn’t opt to recruit him for the Dog miraculous.

Ihighly doubt (after what he pulled in “Felix”) that she would trust Felix with it knowing it was him, even if he’s unaffected by Risk. So she’d probably just take a risk and unify the Dog miraculous along with the Ladybug, Horse, and Rabbit (if she still assumes time travel is necessary due to the lucky charm) to retrieve the akuma object. Unifying miraculous doesn’t seem to be a real problem considering that she was using 3 at once in the finale. Unless they wanna tell me that 4 miraculous combined is where it starts really taking a toll on the user.

Chat Noir was completely unneeded and unnecessary in the fight. Risk required the Dog, Horse, and Rabbit (and in reality only maybe needed the Horse to transport to the zoo if going without it would take too long). Strike Back’s defeat only truly required the Turtle and Horse (and maybe the Rooster, but even then cloning the sunglasses could’ve been replaced by a conveniently placed sunglasses stand). Chat didn’t need to be there.

Once Strike Back & Risk were defeated, Gabriel threw a tantrum and instructed Nathalie to come back to Paris and bring Adrien home since the plan failed (so was there any real point to the perfume ad plan?)

Adrien would’ve gotten to stay in Paris no matter what.