Agreed. Peacock isn't just doing this for sh!ts and giggles. They want to test the waters, see if Days has pulling power (although I hear NBCu is already pleased with the demos streaming the daily Days episodes).
You can already watch GH on Hulu. I don't have any cable service and I can watch full GH episodes there. I just log into hulu.com on my PC and it works.
But the GH epis are up for a limited time before they get taken down.