I think it's kinda cool that someone finally found the courage to take a stand against their toxic family members. I mean, who needs peace and love when you can set your own house on fire? It's like he's saying, "I've had enough of all this fake happiness, time for some real drama!"
And let's be real, his family was probably being super extra with him anyway, so maybe this is just a form of revenge. Either way, I hope Erik gets off with a slap on the wrist, he's definitely living life to the fullest! 