I skipped to the end of IT and watched them bob their heads during the jam, waiting for the part where she cries. The vocals come in, and after a few lines and build up she starts balling. Now I get emotional during some songs, but this screamed forced to me. The lyrics aren't very personal. Sometimes you have to go through hard times to truly be happy yadda yadda, and maybe that was enough. Maybe she has a fucked up past, or maybe they're like most reactors on youtube and will do anything for subs. Especially as she seems to cry a lot. Why do I want to watch someone cry? They seem like they were enjoying the jam, but again, slightly bobbing their heads with their eyes closed. How entertaining.
They seem like nice people, but that doesn't mean they don't have an agenda. The guy is either exploiting his wife's emotional reactions to music and she's just cool with it, or they both realized people will watch anything, and they have dollar signs in their eyes. I know the latter is true because my fiance and daughter watch some really stupid shit on youtube. One example is a girl who just plays Sims. That's it. She even started a video laughing and saying, "this is my job." All I could think was, "not for long with that attitude."