I guess the older hospitals had't gotten upgraded at the time and it was a friggin nightmare, no lights because the batteries hadn't been checked in the backup lights, sam problem with battery powered IV pumps. No oxygen, hand bagging. Carrying patients down 20-30 flights of stairs. Millions od dead animals rotting -- some that were part of irreproducible experimental research. All subsurface areas flooded and stinking. Radioactive waste lost. Many deaths. Hundreds of millions in diagnostic equipment lost. Horrible, horrible thing.
Major construction at Methodist, St. Lukes, Hermann hospitals, UT and Baylor Med schools to remediate, some of it is not finished yet, over 4 years later. The MEdical center got it really, really badly.
I had a friend in Houston at the time, he told me about it.
The rest of Texas took one collective look at the situation, said "Holy F***!!!!!" and started the upgrades if they hadn't already. The state construction codes have also been amended.
Texans can make some enormous blunders, starting with Col. Fannin, but we usually don't make the same mistake twice, and we try to learn from others' experience.