I think everyone is different and that statement is being cautious. From what I’ve read lots of people sustain compression fractures with a sudden twisting motion. I have a -3.3 L1-4 T-score and I still do very controlled twisting movements, but I have a very strong core and have been doing those types of exercises and activities for years. I don’t push the twist as far as I used to, or with as heavy weights, and I make sure my movements are very controlled. I don’t want to stiffen up, and then need to twist in an emergency and have my body not used to the motion. So far so good.