Do you think Jaime should have become such an incopetent fighter?
What about it?
I know nothing of sword fighting, so I'm probably wrong, but I felt Jaime going from top 3 best fighters in the realm, to getting beat up by Ilyn Payne kind of forced. That moment in season 5, when he catches a sword with his golden hand, made me think that he could have adapted more, used a shild on his right hand, and try other tactics, kinda like Quorin HalfHand did in the end of his life.
I do think from a story perpective it makes sense, but I always come to this.
OBS: sorry for my english, I'm out of practice