Research shows that sitting all day is not good...and many people take that as meaning they should not sit at all. They think their only choices are sitting all day or standing all day.
You can see a similar thing with diets. Someone reads that lowering carbs might have some benefits so they try to change their diet from one that has 60% of its calories from carbs to one that has 10% or less. In reality they are likely to get many of the low carb benefits if they cut from 60% to 30-40%, and 40% is a heck of a lot easier to do than 10% (and so also something one is more likely to stick with long term and so actually have a chance to see benefits).
Look at discussions here on HN about climate change, health and safety regulation, crime prevention, privacy regulation, transgender issues, and no doubt many others and you'll find a lot of people overlooking the possibility that anything other than the most extreme opposite approaches might be viable.
I'm sure it's complicated and I know correlation is not causality. But my personal belief is that standing is a huge benefit for my back's health as a programmer.
Alternatively, a standing desk where I have tons of movement and am constantly moving my feet and legs, I can stand at all day long. I'm sure it's distracting when I'm on camera, I'm constantly swaying from side to side.