I cannot see anything wrong with ECLM's post; she explained why Adelaide didn't meet her family's needs, and why the UK does. What's wrong with that?
It's not even as though ECLM tried to put anyone off, just added to the opinions and experiences -positive and negative - of posters on here.
One thing I will add is that IMO, making friends at uni here can be different to the UK. In the UK, you are less likely to go to the same uni as your mates, but here it's more the norm. Kids seem to stay in the same friendship groups, hopefully adding a few along on the way, but in the UK more people are eager to make new connections from the get-go. I think feeling friendless whilst surrounded by people who seem to know one another would be horrible.
I'm very happy for ECLM and her family. It's nice to feel you're at home.