But it's Yoda
& for all we know, he's had to save his mojo up for 30 years to land that flame strike, & could well be backed up by who knows what Whill of the Force for a one-shot light show, burning off remnant Jedi essence in that old shrine.
~it's magic~
Unlike the Holdo Manuever, which was just common starship tech doing a thing it presumably could have done anytime.