Jack Gleeson (actor who played Joffrey) was treated very badly by fans, too. He has retired from acting. I would guess that bad treatment by Game of Thrones fans is one of the reasons why.
Watching Joffrey die a horrible and painful death had GOT fans cheering out loud! The actor was either an excellent actor at making the audience believe he was that unlikeable and that evil or he is something like in real life. He does have the right look to be that kind of person. Someone did a great job of picking him for that part.
I get the feeling when someone gets a part like that to play; a second deal is made for them to be in another show or movie showing them as a good and likable person to kind of balance the scales.
Jamie is finding out heavy armor may be great on land or on a horse (except for the horse) but it and deep water don’t mix. I predict Bronn will cut the leather straps holding it on so he can be pulled up to the surface. They may even escape in the confusion of the battle and burning wagons.