Hi M.. First of all, I just have to say I love the name "Lorelai"!! I would've never thought of that since it is not a basic name. I love it!!!
OK...as far as your friend. She really needs to talk to her pediatrician. They are more able to tell her when to worry and can test for hearing and motor skills development and such.
I have 6 children and I was one of those parents that forced them to learn and they ended up loving it. I still do this with my teenagers. Ha ha. Many, many babies are not going to like their tummies, but they have got to do it anyway. Their neck will not get strong if they don't. I know it is hard to watch them cry, but it is harder to watch them struggle later on.
One thing you can tell her is what someone told me once: All babies learn at different levels, but they all eventually learn to walk and talk. A lot of them are observers of the world and all of a sudden just get up and run and are the smarter ones for watching and learning. So...hmmm? You just never know. I hope everything turns out ok for her.