For the most part, I'd say yes to the discussion, but no to the rating. The typical 300C is a cushy, luxury ride... therefore you don't expect it to perform as well as a "performance" car. That's what the SRT8 is for. However there are things you can do with the 300c if you want a more performance suspension. It just doesn't come that way stock.
I disagree with the "bad" on the SRT8 as it "gobbles juice." My Magnum SRT8 gets 22+ mpg (US) on highway traveling, and 14-15 mpg in my local driving. That's better than my minivan ever did with lots more power available. It's not very far off the fuel economy of my 300C for that matter... and it has the MDS system.
Frankly I'm surprised he didn't give it a 4 of 5 stars. That's what I would give it in overall comparison.