I'd say it's not so much of a realignment as recognition of reality by the involved players. Iranian support for the "axis of resistance" has always been about as lukewarm as that of .ru for the donbass. Mostly jawboning until reality forces them to take action, as happened in Syria. Which is what you'd expect of a regional hegemon; help, but not enough to make your puppets strong enough to slip the leash. The lukewarm support for the Palestinian cause in particular is mostly about keeping their grip on Lebanon, as if the Palestinian refugees left then the country would immediately return to the western orbit due to demographic realities putting the Xtians back in the drivers' seat.

At the end of the day they would give up every single one of them in a heartbeat to come in from the cold.