It absolutely is, and I dont solely blame PH, or the state of Texas, nor do I think every hospital in, say, my state is prepared. The hospital I live literally next door to? Probably not, lol. Though they have a GREAT ER. The one a couple miles away I know is VERY on top of things. Similarly, Dallas PH was woefully unready. Maybe Dallas as a whole is. Another city in Texas might have had the forethought and funding to get prepped. It will vary. But I'm betting the better funded areas that put a priority on public health will be more ready than those that don't.
If we insist on doing things in this country solely on the local/state level, then localities and states MUST make sure that their facilities are prepared. People MUST make sure their local and state politicians support robust public health policies and funding.
Personally, I think it makes more sense to have a stronger federal level authority overseeing. As it is, we have the worst of both worlds. A federal advisory entity (CDC) with no teeth to enforce anything. And states and localities that will vary widely on how well prepared/trained/ready they are for things like this.