One of the funnier bits from that article is:
"Low power was not an FCC option when I was involved with building a digital transmission plant at WETA-TV [a PBS flagship station] more than four years ago - but low power would not have provided WETA with the coverage needed to meet the station's needs and goals."
WETA-DT in Washington, D.C. currently broadcasts on channel 27 with 50.4kW ERP.
Now, I admit that an accident at their real facilities have caused them to have to use temporary ones at lower power, but it's still not a good thing to use a station that is broadcasting using low power as an example of how to do high power correctly.
Of course, I can still get the signal at 70 on my meter from over 20 miles away, so they still are doing a decent job at far reduced power.