Updating a game 10 years after being released is a sign to me that they care.
I find it interesting that he signs off with "uhn dara ma'nakai" -- Protoss for "our duty is unending". Truly a motto for those who have to support a piece of software over the long haul.
Grabbing as much cash as they can isn't caring.
As a StarCraft fan Blizzard has kept me quite happy, and I believe commanders and war chests just felt like the cash grab part of support anyway