@Christina945 I don't think you have any reason for concern. A lot of hosts feel more comfortable meeting a guest who is staying long-term- some hosts meet and greet all their guests, even if there is a self check-in option. If you didn't want to have to interact with your host, a hotel would have been a more appropriate choice.
Hosts have no way of knowing whether a guest is the type who will trash the place out or invite more people to stay, or whatever. This is someone's private home, so of course they have concerns about the guests being good guests. I don't think it's weird for the host to want to meet you to get a "vibe" before agreeing to extend the reservation.