It's perfectly fine to critique without contributing. You'll also notice this:
> I can’t open issues myself because I’ve been banned from the V issue tracker, or I would have already.
Also this from their previous article on V:
> I hope this feedback can help make V a productive tool for programming. It’s a shame it seems to have been hyped so much for comparatively so little as a result. The developer has been hyping and selling this language like it’s the new sliced bread. It is not. This is a very alpha product. I bet you could use it for productive development as is if you really stuck your head into it, but as it stands I recommend against using it for anything.
> I can’t open issues myself because I’ve been banned from the V issue tracker, or I would have already.
Also this from their previous article on V:
> I hope this feedback can help make V a productive tool for programming. It’s a shame it seems to have been hyped so much for comparatively so little as a result. The developer has been hyping and selling this language like it’s the new sliced bread. It is not. This is a very alpha product. I bet you could use it for productive development as is if you really stuck your head into it, but as it stands I recommend against using it for anything.