Yes. He's dragged his feet on the Gaza war and on this for as long as he possibly could, but has increasingly faced outrage in more left-leaning areas and areas with more Muslim voters and all his policy stances appear to be calculated on the basis of what will win more votes/lose fewer votes rather than any kind of backbone. Nothing happens until he has more to lose by doing nothing.

Keir Starmer is a human rights lawyer, would be a bit weird for him to suddenly have no regard for international law where many human rights (ECHR) come from and likely divide his party.

Not saying he's got a backbone, but he's just going for the easier option that keeps his party united.

Have to see if they actually do it. Saying it means very little, it’s not a controversial position.

Starmer has absolutely no opinions on anything other than not rattling the cage of conservative voters. This makes him broadly acceptable, but long term nobody is truly supporting him.