I think there is some difference in regards to the "difficult and costly to perform large-scale attacks"-part. It's not really wrong, but it's misleading in the sense that neither Tenebrix nor Litecoin nor Dogecoin use Scrypt to become more attack-resistant than Bitcoin (you didn't say that but it's easy to read it that way). They are instead using a property which makes it attack-resistant in other uses to avoid competition with Bitcoin for miners.

But I think at this point we are bikeshedding this.