Regional rejects to fly B77W with no basic B739 or A320 skills!!
This is like going from a moped to an F1!
A bit of an overstatement there! I went from a 146 (note 146 and not an RJ!) to a 777 and passed the course in the allotted timeframe with no problems.
Bit of Swiss "Weiner Waving" there, suggesting a FBW 777 is somehow more difficult to fly than 5 APU's.
Merely a matter of "International/LH Route Training" I would suggest.
The 777 is no more demanding to fly/operate when compared to the RJ. It's just different.