I've found in training in different dojo's over the years that few are able to emphasize both safety and "realism". Yet, it can be done. I find it sad that dealing with unnecesary pain and injuries is seen as a given in this article both to yourself and to others. I agree with the point though, that you should keep training and that we face our own demons on the mat. Maybe the author should also think more about practicing more safety or practicing at a different dojo.