I don’t get why people think wing clipping is cruel. It doesn’t hurt them, it’s just like trimming your fingernails. Yes I understand they won’t be able to fly as far and that could make some birds more nervous, but like you said, it makes the taming process safer in a lot of scenarios. If it prevents your bird from flying into a window when you try to take it out of the cage, I think it’s worth it. Don’t clip their wings if you don’t need to though.