The great change ?

I'm so confused as to why the show doesn't focus more on the fact that the powers haven't been in the show's reality forever. Everybody got it at the same time, same day in earth? That's not biological, that's magical ! There must be an explanation, it was not something people were born with, something within their DNA

Maybe Jen's powers or non-powers have to do with that? Who's to say her dad's death wasn't some sort of accident and she was in some coma or something just the exact moment people on earth were gifted their powers Or, on the contrary, maybe her powers have everthing to do with P-day !