I expected more, but in principe it's not bad.
When you start debugging in Xcode, the TouchBar changes and you get buttons for step in/over/out, plus continue running. However since I consider myself in the high-risk RSI category, I use an external keyboard (Kinesis Freestyle 2) and I know the shortcut keys by heart now, but that took a loooong time since I'm not in the debugger every day.
TouchID: In and of itself, it's not bad either. However when you use a password manager, it goes from bad to great because you use it ALL the time.
I do agree with the writer of the article about the new iMac Pro. Why didn't that new external keyboard with touchbar and fingerprint reader? I hope it's some technical/safety reason, because I think it's weird that for such a machine, this tech isn't included.
I'd love TouchID to work on my Linux servers, in combination with sudo. I mean why not? Very convenient.