This sounds like a solution looking for a problem, so if you have to ask the question, perhaps you are wanting to use these charts just because you can. This Blog offers some useful views on when and how to use them.
I could perhaps see a valid use in showing how different teams have performed over time and in comparison to each other, as part of a live presentation. In reality, however, I can't think of many situations where the audience wouldn't expect a hard copy to take away and study the comparative data - which is not possible with motion charts. Perhaps you could use the motion chart during the presentation, and have the underpinning data available for handouts...?
Ultimately, anything that helps to convey a message in a clear, readily understood manner has a value. If you have a good reason to use motion charts, and you believe they will make a memorable impact (perhaps because of their relative novelty), then try them out on a critical friend, then decide whether they will work for you.