The big deal was that Canonical supported ONE binary driver per Ubuntu release. With "-update" its a bit better but only for binary blobs. (However it never worked on my AMD 5720M so I used ADM website to fetch newest).
Now what we get are EXPERIMENTAL drivers (not certified in MS-speak), via Canonical **supported** update mechanism.
That is even better as now MESA stuff will see same level of attention (for Intel at least).
So everything will be doable from Ubuntu Software Center. And since you can always tap into updating mechanism on Linux, it mean that games may actually update gpu drivers when needed!