The Devs said they are considering it, but they don't like that it automatically forces you to install an update to mods, without any sort of prompt. This could cause issues with official updates (mods are usually out of date for a while after patches), plus some modders may release updates that they didn't really test, causing issues (skyrim had a lot of invalidated save, inventory disappearing issues as a result of this automatic mod installer apparently).
That said, even if they don't use it, the mod folder is now a lot easier to find, as it is now in the My Games folder in My Documents instead of an obscure folder behind a hidden folder, so more people should be using mods than ever before.
