I got my first bill since TOU data stopped being available on the Hydro One web portal. My smart meter is still not sending data out. Hydro has confirmed that this is not an isolated problem in my area. Might be related to the recent roll-out of wireless internet in my area, perhaps on the same frequency that the smart meters out. I understand that the meter is only supposed to hold 30 days of data, so if it hasn't been downloaded, it's likely gone forever.
So, if you have a smart meter, and the meter data is ever not available for some reason, Hydro will estimate your bill since they can't read it remotely, and they don't have meter reading staff anymore. And they bill the entire missing data period at the off-peak rate.
I don't have the opportunity to enter my own meter readings anymore, since smart meters were supposed to make that obsolete. So I will have to start reading my own meter again to make sure I'm not being ripped off. Note the bill above does not mention any beginning and ending meter readings for the billing period, which is technically a Measurement Canada requirement.