Maybe in some cases the high cost of hiring artists capable of abstracting code to several platforms effectively is higher than the cost of writing and maintaining one codebase per platform. See iOS vs Android.
At the end of the day software is there to support the business, so if that is the more cost effective approach, why not? I've even argued for disposable software to a few clients.
However, I bristle a bit at a blog that misdiagnoses the problem as "over engineering". The problem is bad engineering, not over engineering.
