Why is a lack of defense "exciting"?

I have heard several fans comment that Walker's team plays "an exciting brand of basketball." Well, if "exciting" equals a lack of defense, I would agree. The Georgetown game looked like a bunch of kids on a playground running back and forth and doing just about anything they wanted to do with only token resistance. For the life of me, I cannot see what is "exciting" about that. It may excite some people, but to me it is just bad basketball.