Bashiok's point about interesting choices vs. choices for the sake of having more choices is one that is worth discussing. There's complexity that comes from the interaction of options, and complexity that descends from an overwhelming variety of options. In the past, Blizzard has always tried to err on the side of lesser, more interesting choices as opposed to more choices that aren't necessarily choices at all. One need look no further than the change in Mists of Pandaria to our talent system. We lost talents that added things like 1/2/3% crit and gained decisions. Not everyone liked that change, but it's worthwhile to keep in mind when looking at future changes that happen.
There's a lot of complexity in modern WoW that evolved over time as new systems were introduced, but not all of this complexity is based on meaningful options and gameplay. As we get closer to Warlords of Draenor, we're going to lose some of this evolved complexity, in order to clear out some room for more choices that matter.
For the full text of Bashiok's post, click on through to the other side.