Yeah, this seems to be a thing a lot of news headlines do. So annoying

Maybe bc I’m not a native speaker but I don’t get it. Is a comma equivalent to an ‘and’? This is how I read it anyway.

And it is indeed super common in headlines. Maybe to keep word count lower?

It is from a time when physical space to fit the actual printed words was at a premium. However, these days it is kept mostly by traditional journalism outlets as brevity in a headline isn’t just about space on a page but in quickly summarizing.