A couple of thoughts:
1) The grid, fortunately, did not go down. We suffered rolling blackouts, and some substations did not reset and come back online like they should have leaving many residents with a long-term power loss. Others, were inconvenienced with having power for 2 hours and darkness for 1.
2) ERCOT did manage the situation reasonably well. It issued the warning, informed the TDSPs to reduce load, and managed to keep the grid operational.
That said, there is room for improvement. I will be paying attention to see how ERCOT responds so that this doesn’t happen again.
Proof you are wrong is in front of you. Embrace your “rolling” blackouts.