Sorry for the extremely late post just want to add my opinion.
Titania makes direct threats to the MC after losing the badge, bc She is a loser who can't accept defeat in fact She even says She doesn't care about the Battle She had to defend her badge, so either She was in denial to cope with her defeat or She has no passion for the job. She was saved twice by the MC, in my game she was easly defetaed with one Pokemon she barely managed to damage, and despite the obvious gap in Power she thinks She can make threats.... Plus she is so stupid she forces her pokemon to kill people when obviously her Pokémon has no fault in this and is being forced by her Will.She kills Taka out of ignorance of not even checking whos within the armor.
She and Amaria are 100% unsuited to be Gym Leaders.Gym Leaders shouldnt' try to kill or threat challengers. Wish there was an option in the game to become Champion and reorganize the league, by removing insane Gym Leaders like Terra, Amaria and Titania and replacing them with more mature people.
Amaria and Titania especially need to stop to use their personal drama against the challengers.
There Will be many new challengers in Pokémon reborn after the restoration of the city, and they shouldnt' be threatened by lunatics like Titania and Amaria.