Re: Is it normal?
This sort of thing is common. I wouldn't say it's a "sensory thing" because that makes it sound pathological. How about calling it a texture issue, instead? We all have textures we like and ones we don't. Your baby is making it pretty clear that chunky isn't her fave right now.
I would continue to give her purees, but I think I would also mix in a few larger chunks so that she starts getting used to a less uniform consistency in her food. I would also continue to offer her a variety of finger foods, and allow her to eat them, or not, as she chooses. At this point, she doesn't actually need solid foods, so the exploration of solids with hands and fingers is really just as important as her actually putting things in her mouth.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"