PG&E ran up a pretty bad record so moving to another state with bad power management sounds like a poor idea now.
Is this a one off I shouldn't worry about or is it a big enough failure in your opinions to sway your choice to move??
The dependence on wind turned out to be a vulnerability with ice (something I didn't know until recently) and the lack of high-capacity interconnections with the other two grids that serve the rest of the country also makes it harder for Texas to get extra power in these kinds of situations, but I think that's fixable -- and it probably will be fixed after this.
Frozen generating stations[1] and frozen roads that keep crews from fixing stuff are also factors. Most Texas businesses aren't setup for this kind of weather since we don't normally have it.
[0] https://www.khou.com/article/weather/texplainer-why-does-tex...
[1] https://www.khou.com/article/news/local/texas/how-long-do-ro...
If I were to live in Texas I'd at the minimum be considering home solar, a TSLA wall or similar, huge investments in home insulation.
I know not everyone has that option, but I'd at least invite cold people over for dinner and some jumping jacks to keep warm :)