In my experience, the people who make unsolicited comments about others’ risk mitigations have incorrectly learned that safety precautions indicate weakness or inexperience, when experience teaches the opposite.
Seasoned professionals know that tools and environments don’t care about your skill level. A tool will injure anyone who doesn’t respect its inherent dangers.
The mockery typically comes from those who’ve either been lucky so far or selectively absorbed workplace cultures that prioritize appearing tough over staying whole.