The part you are missing is ‘paid by whom’. Unlikely the power companies or regulator is going to be paying that amount here. It’s all the poor saps who didn’t have sufficient backup capacity.
There will be costs/losses by the various power companies which weren’t generating during all this of course, but also fixing this is by definition outside of their control (the grid operators are the ones responsible).
I’m sure public backlash will cause some changes of course. But the same situation in Texas didn’t result in the meaningful changes one would expect.