I'm not sure I agree with that.
The learning curve is far shallower than SFIV, with respect to how well you can do with just a b c e a b c super and random full screen beam supers. The combo timing is also childs play in comparison and generally a lot less dextrous ability and timing is needed.
But I accept that the whole system is vastly more complex with various supers, DHC, 3 characters to learn, snap out's, game play methods (only 1/2 ways to play most characters in SSFIV), team dynamics, sjc, aerial combat etc...
The learning curve is far shallower than SFIV, with respect to how well you can do with just a b c e a b c super and random full screen beam supers. The combo timing is also childs play in comparison and generally a lot less dextrous ability and timing is needed.
But I accept that the whole system is vastly more complex with various supers, DHC, 3 characters to learn, snap out's, game play methods (only 1/2 ways to play most characters in SSFIV), team dynamics, sjc, aerial combat etc...