Wrong

The only reason they killed EE is because of keystone.  If they thought there was a chance keystone wouldn't go through they wouldn't have cancelled EE, at least not yet

By far the main reason EE is killed is because if you build TransMountain and Keystone you don't need another pipeline until the late 2020s at the earliest, and even then it assumes oil demands continues to rise.  They were never going to build all 3.