I think the key to answering this question is – do you need a special way, up to “motion graphics standards”, in the way you want to go from a picture to the other? If yes, then doing it in Motion will offer more power. If you just will mix them with cuts and dissolves, producing them on an individual basis and sending them to FCP will give you more versatility in terms of editing – motion graphics applications are not really designed for easy cutting between takes, that’s where editing applications shine.
Both workflows are completely valid. Last time a friend from the Cow questioned an aspect of my workflow, I got quite angry and later had to apologize. So you see, workflows are a very personal thing 🙂
Adolfo Rozenfeld
Buenos Aires – Argentina
https://www.adolforozenfeld.com
adolfo@adolforozenfeld.com