I had the same reaction, and checked dictionary.com.

This new meaning was there, with its only example relating to AI ads!

2. material made for advertising and other aspects of marketing, as a billboard, video ad, or web page design, or the activity of designing and producing it.

"In our latest campaign for a luxury services client, we used an AI platform to fine-tune creative based on user behavior."

Did AI make up this variant meaning and put it in the dictionary, and AI used the word in generating Google's article? What came first, the chicken or the egg? Regardless things are moving fast.

ad creative (also just 'creative' for short in an advertising context) has been around since the 1960's. It was used in web banner advertising at its inception in the 1990s. Tribes have their own lingo, and language changes all the time. Sorry you don't like what the marketing tribe did more than 50 years ago.

I thought "a creative" was the person who designs adverts, but I guess it's acting as a good filter, to filter out people like me, because I'm clearly not the target audience for this.

My ask is that we not use creative as a noun