Ruining the funeral for a bust, needed or classless and thoughtless?

Arresting someone at a funeral, necessary or classless? Watching these true cop shows time to time, I had seen the cops get a tip that a suspect they want badly will be at a funeral. They go in like 12 or more deep and interrupt the service to bust the guy/gal. Is that classless or they doing it just for the camera? If they already know the guy/gal is there why could they not just lay low and surround the place and catch him/her when it is over and they are on their way out? I know the person might be suspected of doing a serious crime but if he/she goes to court and get cleared do he/she get to sue for the lost opportunity to say good bye? And what of the other members who had their last grieving moments ruined by a raid that could have waited? You can’t just say “oops my bad” and hit the rewind button to give them that moment back. Is it all about not only getting the person but saying to all they know “he/she is a terrible person that is why we disrupt your funeral to get them because we could not do it any other time”, to hold them up to ridicule of those attending that may have been unaware of any legal problems that person may have had? If it is a funeral for a family member does that make it worse to ruin than the funeral for a friend, road dog, or colleague, etc?