[@Bright_Ops] Well, if Zorua finds out about Noibat capture before that. Then he would stop, think and accept under the condition of not being put in a pokeball. He is technically  10 while pathum is 12 XD He is the youngest in the bunch. 

And use the trainer to get stronger so he could save his friend and do a escape with her once they pass/reach the third city.  

Gredy would not know Z is using him for his own goals, and it will all depends if in the time they are together Gredy worms his way to Z trust and heart and truly become his friend or not. Depending on that Z action and plans may change.

That plan "Make the bat free again" can process with any good hearted person, who believes in the goodness in everyone and give out potion to hurt pokemon.