That is all they should receive. People also need to remember that these letters will cause the officers problems if they seek employment elsewhere. I doubt there is anyone that would want their livelihood taken away due to some moments of bad judgment.
Yes, the training hours will be paid; it is the law. Would YOU work for free? No, so do not try and pass your ridiculous "standards" onto others. Let me tell you a quick story.
When I was in law enforcement(about two years ago), I was working a murder-suicide. The group of us was collecting evidence and gather our notes, when someone said something funny and we all chuckled. Remember now, officers deal with constantly stressful situations and living in an environment like that takes a toll rather quickly.
Well, a reporter decided to break the containment line and observed us chuckling. It came out in the paper two days later and we were all given letters in our file and force into a "touchy-feely" class. It was all total bullshit and most of us relocated in different agencies or found different careers.
Respect law enforcement officers, they do a rather hard job. When they are working for 24 and 48 hours straight on a case, do not shit on them for taking break. Yeah, the raid might have lasted nine hours, but I can bet you that they spent double or triple that preparing just prior.
I bet that there are hardly any of you that could do that job a quarter as good as those officers.