So in principle, I could have a contract with a supplier that says they have to pay me serious compensation if they cut me off - like, maybe the kind of money I'd have to deploy to quickly deploy and fuel a diesel generator. Under the Texas 2021 conditions, that might mean I've have to get the thing helicoptered in.
Presumably such contracts would focus the minds of the risk-takers.
Upthread, I read that the "market" in Texas consists of suppliers offering all kinds of different tarrifs, like free-after-midnight and so on. This makes it almost impossible for a consumer to compare different offerings. Some suppliers are offering apples, others oranges. We have this in the UK; successive governments have struggled to get consumers to switch suppliers. There is inertia. The variety of tarrif types means that the product doesn't behave like a commodity, because consumer energy contracts are not fungible.