I don't feel the need to check for reality. I've seen screenshots from games that look more realistic than some pictures I've taken (Forza on max settings at the right angle might as well be a photograph) and this trend will only continue.
This tool can be considered more of an automated version of meme communities, where dedicated members will spend an hour photoshopping muppets into historic events and making the pictures look absolutely believable. The only novelty I see is that the computer now does a lot (but not all) work for you.
There are nice opportunities here. If you need a stock photo of something very specific, you'll soon be able to generate one with the right query and the right AI. Small companies can generate fancy brands without paying professional designer's fees, especially if all they need is a billboard and not a whole suite of office supplies. You can generate your own posters and decorations featuring interesting landscapes and scenes in any style you want.
The current iterations of these algorithms are quite limited in many aspects and sometimes uncanny or even horrifying, but I look forward to a future where I can imagine something, describe it, and have it rendered into digital art just like I pictured, without having to spend decades on honing my skills as an artist.