The OP is correct, but he cites some of the wrong reasons.
(5), (4), and (1), as someone was quick to point out, just make the game less tedious. However, (3) is something that few, if any, JRPGs have implemented in a balanced way, and (2) really strikes to the heart of the matter: JRPGs are easy because it's generally time invested, and not twitch skills or brain-power, that determines how "good" you are at the game. No matter the challenge, grinding for hours on end against pushover enemies and/or following a walkthrough to get the best items will let you beat it. You can't really say the same for any other genre.
"'Casual games' are something the 'Game Industry' invented to explain away the Wii success instead of actually listening or looking at what Nintendo did. There is no 'casual strategy' from Nintendo. 'Accessible strategy', yes, but ‘casual gamers’ is just the 'Game Industry''s polite way of saying what they feel: 'retarded gamers'."
-Sean Malstrom
