He did indeed.
Trump's style of being absolutely real and saying exactly what is on his mind and his general lack of inhibition is going to drive the Democrats crazy and help his fellow Republicans.
By being a what-you-see-is-what-you-get type of personality (which is BTW typical for an outerborough New Yorker), Trump forces his competitors to play on his field of battle. If they don't, they look stiff and contrived.
Regarding Lizzie, he gave her only two ways to respond to his attacks. She could hold back and look stiff and cowardly OR she could get into the octagon with Trump where he has the advantage that comes with his naturally playful and pugnacious personality and his experience.
Even other members of the GOP are learning to emulate Trump's style of "just be yourself." Just looks at Hatch's tweet about his T-Rex ancestry and Graham's give'em hell rant in Committee.
Look at Sen David Perdue taking the cell phone away from a student at Georgia Tech last weekend.
Trump's leadership is teaching Republicans that it is OK to be brave.