It's a complex subject and evidence for risk in a particular kind of stretching for one activity (running is the usual example) will not be the same as in another.
In the sentence that I bolded, what does "another" refer to? Another activity? Or another type of stretching?
Yes another activity, For example a stretch that affects a muscle that is going to take a pounding through running might not carry the same risks if you substitute running for an activity in which the muscle is barely used. Sports tend to use the omote kinniku
(outer muscles) but in aikido most styles are aiming to at least minimise that and certain lineages close to the founder train to forge kokyu-roku
which uses the ura-kinniku