I (the author) would agree with this statement, except for the baffling fact that Google Chrome Frame has a non-zero number of users. So obviously some people thought "I don't want a new browser, but I'd be OK with installing this plugin."
Strangely enough this was the sentiment at Google. I was talking to a Googler in a recent GTUG meeting and they told me exactly that: Some people won't change browsers but they are OK with installing a plugin.
