Sue, part of me always hopes there is a reason for things being as they are. Usually there's not. lol
I'm waiting for short rows on this one. Wanna bet? I bet 2 knits there will be. ;p
It's just ribbed at the bottom so I don't see why you can't just cast on and join. It looks like the pattern is just written that way to make it easier, but clearly it's not for you.