Supply chain issues aside, I don't think that's true. This is about Miele, none of which are lower end, and here's the first dishwasher I randomly looked at on their site, and it has no Wifi. https://www.mieleusa.com/e/built-under-dishwasher-g-7106-scu...

You still have to specifically choose a Wifi one. (Though again, I can see if availability issues might throw a wrench into that if you needed one right away.)