"The Trudeau government must still stand firm on the Trans Mountain pipeline."  Having already lost much of the pro-business vote in BC (especially small business taxes, but also idle threats such as capital gains), Trudeau / Butts may well waffle (to stall at least under after the next election) or flip flop on TMX, to avoid losing ground to Singh for the left / activist votes in the region. 

On EE, sure it's not a vital project now if XL goes ahead, but pipelines are not built overnight and it may have  actually been a smart business move to build while input (labour) costs are a bit softer, and be ready for future demand.  Risky?  Sure.  But layer on regulatory and tax risk, as McKenna and Butts impose new rules in the middle of game on multiple fronts, and the combined uncertainty was deemed to high for shareholders.