So far I've only seen AI tools used to make things more average. I'm not saying you're wrong, but I'm not sure the tools are up to making the artist more productive. This applies to the generative AI's only. Better editing tools certainly help and they help today, but I wouldn't call them intelligent on the level people are expecting agents to be.
Corporate blog posts are often times more for SEO and/or social proof that a company isn't dead. There's normally minimal new information conveyed (especially in the OPs case where it's not an internal domain expert but outside agency, so very simple concepts/basic news) so how much does it matter if the content is average?
