Wow.
" Does anyone think using a flash drive for doing projects
isn't a good idea?"
This is indicative of someone who has never really been responsible for other peoples recordings..I would never in a million years think of using something as temperamental as a USB storage device to keep ANY project I was interested in maintaining, let alone a project for any client, and therein might be the major difference in how this product was used...recording studio or hobbyist. I barely ever used USB to BACKUP anything, usually just moving things from machine to machine until I got the network set up.
USB bus has a lower SUSTAINED throughput...it might be "as" fast but the data delivery guarantee compared to fire-wire is much lower.
And honestly for a few bucks more you can have a 128 gig SSD drive that is faster than USB and has a better lifespan.
Impermanence is a mindset practiced by users not builders.