There’s definitely a lot of nuance in this topic. I think discarding the whole thing and saying “And if your grasp of the language isn’t good enough, you can edit a page in your own language” is a bit naïve. English is the lingua franca of the world, so if you have knowledge about something that should be in Wikipedia but isn’t, adding or appending to a English page will reach the widest audience. Ideally you’d then do the same for your native language as well.

As long as there are humans at the beginning and end of the pipeline I at least hope that this won’t negatively affect the quality.