one problem is though, is that both sides of the pacific ocean is warmer than normal, meaning that any warming in the eastern pacific needs to be that much more above normal to eventually affect the atmosphere
having said that, Peru though has been getting El Nino like rain, due to the warm water off the coast there
the other thing is that with while in current neautral condtions, there is no dominant steering, and so sometimes the weather patterns have been El Nino like (eg drougth breaking rain in CA) and other times La Nina like