It looks very plausible that stretching before you exercise doesn’t do much for you. Multiple older surveys suggested this.
Annoyingly, the studies linked in the previous paragraph are 2 decades old, and somehow I can’t find a large, well controlled, trial.
Note these methods are enough to support/detect effects of other safety practices.
Science isn’t certain. We make mistakes. The rule ‘doubt all who hedge’ is how we get the republican party.