Yes, it looks like they've screwed up. Some people have been able to update CC to LR6, some people get half way through the download and it fails, some people (me included don't get any option to upgrade to LR6 in the CC app... It's all very annoying. I tried the help chat, and I got "log out of the CC and try again in 2-3 hours". Well, that was half an hour ago, but I'm not holding my breath for getting LR6 today.