They likely do, but that’s not important. This has proven to be a good, compatible option and a better fit in their lineup. If the viewers reject the newscast, then by all means, take a look at what you can do. They aren’t, at least as of today, no pun intended.
Yes, stations have added local news as a trend. But repetitive isn’t an issue if, like most viewers, you’re not watching it all. I leave the house by 5 am most days, having caught some of the 4:30 newscast. It doesn’t matter if that content repeats in large part as I’m not watching. My kid typically watches just the 6:30 segment ahead of school. Doesn’t matter what they ran earlier. People by and large aren’t watching 3 hours intently. Some may have it on for hours for background noise, or the feeling of company like my grandmother did back in the day. She didn’t much know or care what most of the lineup was…other than All My Children…it was simply sound in an otherwise empty house.