It isn't experts who remove it. It is professionals whothink they know. I've been trained on chainsaws by USFS experts - they used the safety gear and demonstraighted that used correctly things work just as fast. In fact they were often faster than the professionals who thought they were faster - because the planning and communication steps (6 steps) often saved more time than was gained by jumping in)

safety gear doesn't cost much time to put on. Checking the safety gear also finds not safety things wrong with it.