That's true, but it's pot calling the kettle black.
The clever Greek was not just referring to the Romans'
writing of history, but to their history itself, which was full of extraordinary characters caught up in extraordinary events. Even a straightforward recitation of the events themselves could have the force and majesty of a great epic. Why would the Romans need literature when they had their own history?
The Roman writers were all in the tradition of a respective Greek "historian", as usual they weren't able to devise much upon their own but had a certain talent in improving other people's customs. I remember my old Latin teacher always used to call this "la morve romaine", Roman snot. He was an ardent classical philologist, he was convinced that the Greeks were - culturally speaking - vastly more sophisticated than the Romans.
He was obviously right. The point, however, is that the Romans were aware of this and
deferred to Greek culture. The Greeks were culturally vastly more sophisticated than
anyone else at that time, as they kept reminding everyone (and still do, eh, noemon?
). The Romans, to their credit, accepted this and were able to understand and assimilate Greek culture. They "got it", to use modern parlance. We should give them credit for that.
"Politics is the art of looking for trouble, finding it everywhere, diagnosing it incorrectly and applying the wrong remedies." - Marx (Groucho)