Except the east and west grids have enough geographic variation where they are unlikely to have the same grid-wise problems as Texas with a much smaller grid.

The very west (i.e. El Paso) and east parts (Beaumont) of Texas are not covered by the ERCOT grid, they invested heavily in weatherization after 2011, and neither of them are experiencing anything close to the catastrophe in the rest of Texas:

https://news.yahoo.com/parts-texas-not-ercot-power-080159059...