Just to add some balance as a Newcastle fan - the "over the wall" tracksuit was the idea of Fabricio Coloccini, a dressing room thing, and it's unlikely Mike Ashley or others at the highest level of the club, knew anything about it. Ryan Taylor had scored a free kick, over the wall, against Atromitos, against whom he was injured in the second leg. It seems unfair to suggest that this gesture for a friend and teammate had anything to do with Sunderland, and is unacceptable to compare it to the Suarez T-shirt situation.
Certainly it is true that the "Ryan Taylor, Over The Wall" song originated following the derby match against Sunderland. But Taylor has scored several similar goals since then, with the "over the wall" free kick becoming something of a trademark for him. Hence the enduring popularity of the song.
So not "petty" or "pathetic", then. Some might argue an article referring to a player being severely injured as "some entertainment" could be more accurately described using those words.