This is a feel good story but, I fear, not meaningful to overall ABC viewership. Looking at the Sinclair and Nexstar ABC stations list, the biggest markets are Salt Lake, Knoxville, St. Louis, and Seattle, but these are not typical. Most of their ABC stations are places like Harrisburg, PA, Grand Rapids, MI, and Tulsa, OK. Not big markets and probably didn't have much viewership in those markets anyway.
You probably couldn't give ad time away in those markets even before he stepped on his dick.
https://www.nexstar.tv/stations/ https://sbgi.net/tv-stations/
BUT, I am encouraged that someone (anyone) finally said, "Enough!" I'll take that as a win by itself.
The nexstar list just is biggest to smallest and includes NYC, LA, Chicago, Philly, DC,SF and Denver in their top 20.
There is no ABC affiliate station until you get down to #26 in Nashville.