I read into this a while back and it made sense to me.
I agree with some of the points mentioned in the article.
It's true, modern engines don't really "wear-in" like older engines used to. The article seemed to focus on "rings" mostly, but there are other parts of the engine that also break-in. ( Cam lobes, bearing surfaces, etc. ) How you choose to break-in your new engine is not that critical, as long as you don't make the obvious mistakes. It's easier to list what NOT to do, so here it is:
1. Do not romp on a COLD engine. Warm it up before you take off.
2. Do not LUG the engine. Let it smoothly rev up. Keep it in the right gear.
3. Make sure it doesn't overheat. It cools when it is moving, so keep it moving.
4. Keep it away from the rev-limiter. Don't rev-bomb it at stoplights!
5. Keep a close eye on the oil level. Don't run it low on oil.
That's about it. Treat it right, it should last a long time.