The way things played out don’t make any sense from a Red John character perspective.  

Red John had no reason to reveal himself to Jane. Jane, the CBI or the FBI were not closing in on him.  

Why decide to finally kill Patrick? Was he mad that Blake Association was revealed?     

And the way that Red John had Bertram killed didn’t make sense for the character of Red John or fit with the past actions of the Blake Association.  If Red John followed his past actions, he would of killed Bertram and left a smily face on the wall so everyone knows that Bertram wasn’t Red John.  RJ is a narcissist and wouldn't want to let someone else have credit for what he has done.  RJ has killed at least 3 people for using his name in vain and two others for pretending to be him.