Of course, it's a short-cut, nothing more. And if you're heading uphill, any shortcut will have its own challenges.
Yeah, that's a good question: Why do some songs forego the lyrics? Also, a couple of times I tried remixing a song, and the end result was identical to the first one (as far as I could tell). Although I really don't miss the skipped lyrics in those tracks, it was not me who switched them off.