RE:it mayIt definitely does. It takes away a major demand source from the WCSB which is SAGD and Cogeneration. If oil production plans for Alberta take a hit, then SAGD and industrial electricity demand for NG go down. Rail isn't economic unless there is a big discount for WCS and that is terrible for Canada as a whole.
In addition it will reduce the supply of oil from Canada to the US. Oilsands companies are already untouchable so there will be relatively little capital movement to the south, but the impact to WTI/Brent spreads tightening will encourage more US production and associated gas. Again, I expect this impact to be way less severe than 2014 and 2018 cycles.
Obama and Biden have a way of being anti-O&G as long as it doesn't impact US production. Under Obama/Biden more US production came online and more pipelines were built than any other recent president.