He linked a TON of projects that have been shut down. The logic of your message seems to be "they only shut down things that aren't popular, therefore you should feel fine using this really niche product that will never expand beyond a small group of developers."
And for the record, I did use iGoogle. And there were plenty of people who used Wave, Reader, Code, and Labs.
Reader and Code are the only ones that had traction.
I object to the idea that it is, "a Google" when we could make the same argument of many tech companies. I object specifically here because it's been shown to be a talking point in a whole deck of talking points written for an MPAA smear campaign on Google.
And it's not particularly fair. They should call it, "Pulling a startup" given how often we fail at them.
Let's not pretend that there was only one "really used" service they pulled. At Google's scale, every service is "really used".