Being occupied with word shapes and word plays is fine! You and several other replies to that post focused on the word-play part of it, as if that was what I was reacting to, and I understand that, since I didn't really give you a lot more to work with. What I tried to bring attention to, however, was the way in which sentences like that break immersion. To me, a sentence like this takes me away from the fantasy world that I have so far been presented, and into some kind of (sorry I keep using this example, but it's really how I feel about it) Marvel movie where our heroes are engaged in friendly banter, or to some tumblr fanfic. That could of course be a problem with what I am expecting going into his universe, but I believe it is more of a problem of Sanderson not taking the time to properly refine his ideas before committing them to paper. Which, again, as many have pointed out, is due to the prolificness of his writing. That doesn't excuse it for me, though.
I am not looking for soaring prose - Mark Twain is great partly because of his ability to maintain the illusion of a rustic backwater society and the people within it. Star Wars is similar: When they stay within the expectations set up by their own universe, it's great! Trashcan robots are part of this! But as we have seen, whenever the dialogue takes you out of the universe and reminds you this is an illusion, fans do react ("I don't like sand...").
I also recognize that this has evolved way beyond where it started and this interaction on HN has influenced my thoughts about this. So I won't pretend what I'm saying now is 'what I had in mind from the beginning'.