nobody outside of alberta is going to vote in favour of a pipeline; this does not affect non-albertans at all in any way.
however, plenty of people outside of bc will vote against a pipeline, because it certainly does affect everybody, and rather considerably.
so, while i'm not going to comment on the results of online "polling", which i consider to be so useless as to be no better than a random guess, the numbers that they are measuring are of little value in the first place.
trudeau can only lose seats by supporting the pipeline.
but, if he's lucky, the number of sophisticated voters like me - that expected him to support the oil industry, and are more interested in structural approaches towards transition - will outnumber the number that kneejerk against it.
but, he has to do a lot more on the transition file; he has to demonstrate concrete results.