yes, your last point is spot on. that is why I would not recommend power or olympic style lifts to anyone outside those sports. There are a whole lot of safer ways to get similar results.
As I am over 50, and recovering from injury, I am quite content to work muscle groups without need for heavy lifts, say squats in regard to thighs at moment.
I lack flexibility, have little time, and know full well I will get same benefits from a combination: leg extensions, leg press, lunges and step ups.