We don't know who the women in previews 5 and 7 are as they are new characters, and yes, these will all be in Ep 7.
Giving someone a name when you don't their name is weird. Surely you wouldn't do that in real life, right? Like, if you're sitting in a coffee shop and see a nice looking girl, you're not gonna give her a name in your own head, right? Because that's fucking weird.
Also, Maya's Dad could be anything from a school janitor to a freaking astronaut and be homophobic. He doesn't have to have a specific career that make his views any more plausible.