I also think that there is a big difference between flowing and dynamic waza.
Ie: doing ikkyo ura in ki no nagare because that´s whats you are supposed to do (flowing waza) is not the same as doing ikkyo ura in ex jiyu waza because the movement and intention of uke makes it a good choice (dynamic waza)
I agree! I think you have to have all three: Kihon, Ki no Nagare, and Jiyuwaza/Randoi. The three all cover needed areas very nicely!