Scenes are not normally put into shows for viewers to skip, they carry impact and in this particular case, it's to literally help us understand the character development and to emphasize that regardless of how tough or mean someone is, the mind is susceptible to trauma which will have lasting affects if not addressed, often for the rest of your life with the issues compounding in severity. Edit: apparently skipping scenes is regular for animated shows, mostly because they literally recycle scenes between episodes as an overlap to catch up from the last episode without actually making it into one of short recaps before the show starts. And secondly for non-cannon shows or shows that have a lot of irrelevant content to the cannon content in the series - Star Wars:Clone wars animated series - in this circumstance, people skip entire episodes so as to only watch what is relevant to the cannon story. But again, none of this content was intended to be skipped, it just fails to feel relevant or interesting to the viewers who choose to skip it.