And they have current benchmarks that indicate that it's still the right decision: http://blogs.msdn.com/b/ricom/archive/2015/12/29/revisiting-...
My big problem with the first article was that in my experience, the extra registers available in 64-bit make all the difference in the world. In the comments for the article you posted, he says that isn't true with VS. Surprising, but I'll take his word for it.
Still, it bothers me that he keeps talking about 4 GB of code and data should be enough. VS becomes pretty unusable for me around 1.5 - 2 GB. If it worked reliably up to the 4 GB limit, I'd be happier.