I can see why Labour have pulled back on this one, as it can be portrayed as rejecting the referendum. That could lead to a horrorshow for Labour, if there is a 'Brexit' election. I would think that this on May's mind now, as she could hope to annihilate Labour, as non-patriotic Remoaners. On the other hand, Starmer seems to have his head screwed on, he is surely the dauphin now? He might secretly want an election, in order to clean out Corbyn, and leave a vacancy.