lol, no worries! Most people I play with these days aren't familiar with AoS or didn't get very far, so I'm used to it. I put together a little AoS 101 if you're interested in the very broad strokes of the series and how it fits into the MCU. But, of course, it's not too likely that Sersi would know too much about any of it anyway, except maybe for the existence of Inhumans like Daisy after they're revealed to the public in season 3. (People suddenly popped up with powers, which obvs just led to lots of issues everywhere.)

I love it, that's the perfect canon point.