Puerto Rico is still in bad shape and huge resources have been spent on fixing that minor disruption.
That's an easy one. It's the same reason that PR had a three day outage without any storm: http://energia.pr.gov/wp-content/uploads/2016/11/Expert-Report-Revenue-Requirements-Fisher-and-Horowitz-Revised-20161123.pdf There's no valid comparison to the mainland US grid.
And they are in a warm climate and don’t have to worry about freezing to death.
“Puerto Rico is still in bad shape and huge resources have been spent on fixing that minor disruption.”
The disaster that befell Puerto Ricos power grid was not a minor disruption. It took literally decades of lack of effort in maintaining their grid to get it to the decrepit state it was in before the hurricane so that when the breeze blew it almost literally pushed the whole thing down.