"...the Google rep never made me feel dumb (and even backtracked when I pretended to be confused)..."
I've dealt with Google's YouTube TV support and had nothing but good experiences so far. If you have an issue with the service, you can start a chat session or call on your phone right from the app. So far, they have been on top of things right away....
"1TB for $70 per month"
Should be 1TB for $70 a year.
Which, since google doesn't have an exact equivalent offer, is cheaper than extrapolating the price from the 200GB plan (by quite a bit), and only slightly more expensive than extrapolating from the 2TB plan.