I'm sure all those "All My Children" fans will feel vindicated by this news.
They shouldn't. The Chew had a nice seven-year run, and beyond that, AMC simply wasn't delivering what the network needed any longer. It doesn't matter if the replacement lasted seven years, seven weeks or seven seconds. A change was necessary. The market couldn't support all those soaps.
Now why ABC is choosing a third hour of GMA as The Chew replacement, I think it's clearly because they had no ideas so they just decided to do what NBC did with the Today show. They could give us their first daytime game show in nearly three decades, but as we all know networks except CBS consider daytime game shows to be a dead genre. Though given their Summer Fun & Games block maybe they could be the next network to have a daytime game show on their schedule again.
ABC has had an eye on expanding their marquee morning "news" franchise for years. This is no "no idea" move. They finally decided to pull the trigger.
Their first attempt at "Good Afternoon America" didn't light the world on fire, but it doesn't need to to be a success. It needs to deliver a decent, sellable audience that delivers a better bottom line. The Chew had a nice run, and there's virtually no way ABC News hasn't been game-planning this kind of move for a while.
In all likelihood, this will be no hour of hard news, outside of major news days (when a special report may have been warranted anyway). As it is, GMA segues into fluff fairly quickly, so don't expect a dose of hard news at 1 p.m. What it does is, for some of their O&Os like WABC and WPVI, create a block akin to the mornings, with local news sliding straight into the network news.
Finally, I'm sure some overly nitpicky types will obsess over whether the word "Morning" is used in the title, though it airs at 1 or 12 p.m. ET. The bulk of the world will accept it means nothing and choose to watch, or not watch, regardless of such triviality.