Don't think we watched the same show, blud. There's no blood or gore, and Mob never blew a man in half? He only exorcises spirits who don't have blood. And nothing like that happened in episode 5 either... like what?
Though there IS definitely violence, but it's never bloody. At most the kids are scratched up. And there's no s*xual stuff beside S3E8 and even then, it's only implied. Because that's not what MP100 is about.
So i'd say it isn't for people who are easily offended by violence towards children, because yes there's fighting. And no, you have to watch every season to appreciate the show properly. Because the story is about Mob's growth. So skipping a dozen episodes will make you miss out on his character development.