Don't confuse your fps with server side (n)fps. (Which is why I edited my post... =P)
+1 for the peeps with shit PC's.
-1 for the ones with good ones.
This update is all about more user's, an "averaged" playing field, stability if the server was hopping frames all over, and less stress on the "bad" servers.
This article sums it up pretty good.
http://www.moreal.org/articles/fpsund.php
Now, Valve, please work on netcode alg's.