I honestly wouldn't mind Falinks with Ash.
Looking past 'typing', they would obviously function uniquely and give Ash a new challenge in raising a "squad" altogether.
To argue against the "it's just another Fighting type" debate, Falinks has access to moves like Poison Jab, Smart Strike, Megahorn, Zen Headbutt, and Iron Head to differentiate it from his other Fighting-types... outside of it also functioning, looking and acting vastly different from Farfetch'd and Lucario.
Then again I'm also saying this as a big fan of Falinks... I don't think it's particularly likely that it'll join Ash's team, but I do see some merit in it and think it'd be a unique and really fun pick!
Either way it goes--I'm just excited to see it fully animated and interacting with the cast, even if it's just a POTD or a Goh capture!