NO WAY! - If you can honestly say the workload went "way up" in a Falcon compared to an EMB.....my justification for never stepping on a regional airliner was/is a good choice....
Automation of the EMB? did you just say it didn't even have VNAV?
Simplicity? I just cant imagine it gets any easier than a Falcon. It's been, by far, the easiest corp plane I have ever flown! (50,900EX, and 7X)
Inefficient? - I'm doing flight plans as we speak here for an upcoming Falcon trip - nonstop 5845nm and a fuel burn of 27,994lbs.
anyhow - no kidding, what did you find that made the workload go way up??
disclaimer - FWIW I never flew a Legacy