Notley has outlived her usefulness to Justin Trudeau and someone should gently let her know.  Notley, still fervently in love with her carbon tax and oilsands development cap plan, hasn't gotten the memo from Liberal headquarters.  At some point the Liberals decided that stoking division and enmity within Canada is more electorally advantageous than cooperating with Notley's now discredited "social license" scheme.  
Justin Trudeau's decision to reprise his father's cynical path will have consequences.  Most immediately, as the article hints, for Rachel Notley.