I tend to think it's just a typo. As for you other examples, a quick read-aloud makes them sound standard even though they aren't ("sentence to life in prison" sounds just like "sentenced to life in prison"), which might be why they were missed by a sloppy editor.

No, I can't consider it a typo -- to me a typo is where you get the odrer of the letters mixed up or you get another lettter added in inadverently. Leaving two letters off the end of the word is pretty hard to do as a typo -- which is why to me this means somebody has a different idea about usage for world-renowned. Whether that's the author or a copy editor doesn't really matter to me.

Also, if the other examples I gave sound standard but are being written differently, doesn't that also suggest that the user has a different understanding of how the grammar works there? In this case it could be a typo, but my whole point was to say that I've seen this many times over the past couple years and especially the past few months -- and where there's language variation, there's usually language change going on.

1) It could reflect a different understanding of the grammar of the phrase, but I think it's probably closer to what the Language Log folks would classify as an eggcorn, at which point IMHO it's not necessarily a question of grammar--mistakes like that seem to occur because people feel that they are using an idiomatic phrase which thus doesn't necessarily need to make perfect grammatical sense.

2) It could also be the equally insidious cousin of the typo: the brain fart, wherein the person producing the sentence knows the proper formation and just makes a mistake. These sorts of things happen all the time; just this morning in the Washington Post, I read an article that was missing an "of" from a sentence, but it didn't occur to me that the writer might have thought that the sentence didn't need that word. Editors are supposed to catch these as well as typos, of course, but they often don't.