Perhaps you just don’t have a use for it?
It doesn’t do the thinking for me but man it’s a time saver for busy work.
It turns a lot of my work into “editing” rather than writing and then editing.
It’s very good for teachers to differentiate materials for students with a variety of reading levels.
I don’t have to trust it though? I just told you I revise and edit.
It doesn’t do my job for me, I still have to understand how to do the work properly. But I can use it to save time and then revise, check for errors, etc.
You’re basically arguing that spell check is useless because it’s wrong sometimes. It’s just a tool.