I suspect the shotokai folks might focus more on the transitions between the moves.
From my experience with my instructor, yes. And those transitions are a bitch when they are happening to you.
The more defined movements could also be a matter of trying to preserve an art exactly how it was taught. Supposedly the JKA were trying to make sure that the kata were done exactly
like they had been taught, which is a bit ironic since Funokoshi made changes to them as did his son Gigo. Could be a lesson there about trying too hard to preserve an art.
On the other hand we have Egami...
"Kata must be done with movements that are full of vital energy, not merely movements".
This gets a little metaphysical but I think there is a good point in here. http://www.shotokai.com/ingles/history/style.html