Rolling outages are when they've got enough power for some neighborhoods, but not all of them. Texas is so short of power right now that they've dropped power everywhere they can, excepting only certain critical facilities (hospitals, police), and continued operation of the grid itself -- a totally cold restart, they say, could take weeks.

A rolling outage would be relatively short in duration, and "roll" from one area to another. No roll happened here, just a bunch of areas off for long periods of time, and others not off at all.