Also keep in mind that even in Texas it is only 3% to 4% of the population that is licensed to carry a gun. So even where there is a so called "gun culture" is is not true that everyone is armed.
In addition, as in the incident in El Paso recently, a significant percentage of the people in the Walmart were likely Mexican citizens over for a day of shopping. By law they are all prevented from being armed so even if there were LTC holders in the crowd they would be an even smaller percentage than the statewide average.
I wouldnt have thought everyone was carrying but 4% is surprising. I would have thought maybe 20%, or even higher.
If something like happens here, and something similar did not that long ago, people stand around in stunned disbelief. Watch the people that come out from behind the van. They see whats happening but theres a disconnect between their eyes and their brain. They're not comprehending what they're seeing.
He didnt have a gun but its clear the officer does and is in a serious situation with someone highly dangerous and yet their reaction is only mildly curious.