Well, I kind of agree. At least in so far as it would be damn good job if this was some weepy romance novel or tearjerker flick that I had no intention of watching.
As a main plot for Fallout 4, it's a bit like saying "Hey, why don't we make Love Story 2? And this time we'll have mutants and lasers and aliens. The tag line can be 'Love means never having to say you're radioactive!'"