Are you suggesting that Microsoft and Amazon's sponsorship of Overture comes with an understanding that people who work on Overture will spend their time writing articles that "boost AI"?

Does "boosting AI" include opening an article with "Frontier models are really good at coding these days, much better than they are at other tasks"?

Can't speak for the former, but the latter question: yes.

"Product is really good at X, much better than at Y" does not imply that it's bad at Y, and even if it did, if you're targeting an audience that only cares about X, who gives a shit about Y? Might as well throw Y under the bus to boost the perceived effectiveness of product at X even more in comparison.