Where did I say it is always the right tool? On the contrary, Eric clearly says it is never the right tool. "Always" and "never" are the sorts of words that make one look foolish.
"Object-oriented" is also a particularly overloaded term. I tend to think of it as implying class hierarchies while others tend to think of it as data encapsulation. Both are valid views so we need to be precise about what we're describing.
I *think* Eric is talking about class hierarchies because no sane person could possibly object to data encapsulation. :)