You're really sounding like quite the fanboi.
Episodic...by the time Ep2 hits, it will have been just over a month short of 3 years since HL2 was released and we have seen HL2, CSS, DoDs, HL2-Xbox, Lost Coast, HL2DM, HLDMs, Episode 1, and now TF2, Portal and Episode 2...plus all the extra maps for the multiplayer games.
CSS, DoDs, HL2DM, and HLDMs were all finished if not largely finished at the release of HL2.
Lost Coast was one map.
HL2-XBox is a port.
HL2DM, HLDMs, and Lost Coast aren't even significant to bear mentioning. They could have written HL2DM in a week.
One thing I will give them props for is that they released new levels for CSS and DoDs in that time, though honestly they were neglected in what little (map-wise) they brought to the table at release -- more of a "here's the game -- it's functional -- we'll finish it later."
Only real product I see on that list that counts is EP1. EP2, TF2, and Portal don't make the list as A) they're not out yet and B) Valve won't hit their Oct. 9 date. They never do.