I don't think rolling blackouts during an extreme weather event that doesn't happen even every decade is an unreasonable issue. What isn't forgivable is 1) not notifying the public this will happen and energy needs to be conserved in advance, 2) not doing everything to cut power to unused commercial space and frivolous usage like decorative lighting for skylines and such, and 3) not actually rotating the blackouts where some people get no power interruption and others get it shut off for days.
Having to make sacrifices in an extreme event isn't unreasonable, but not having any plan in place for efficient and equitable conservation and distribution of the resources in an extreme event is criminal.
The deregulation has a lot of advantages for consumers as well as producers but it shouldn't be completely void of regulation. There needs to be basic safety net protocols and efficient plans for events like this when they do happen. What happened here is akin to someone losing their job and deciding that's the time to take that $8k trip to Vegas to blow their resources. The waste and lack of planning to manage and distribute efficiently was criminal. Also need to have discussions about using funds to outfit critical and emergency services like hospitals, fire stations, etc with backup generator capability for keeping their most essential power needs met in the event their area is cut off during a rolling blackout.