Oi! Hands off...
agricola is definitely a huge complexity leap from ACBS.
If you're playing 2P, I'd say the complete opposite. It's possible for 2 players to play Agricola and not involve themselves in a massive amount of screwage, and one poorly-chosen move need not spell the end of the game - certainly for beginners and intermediates.
Conversely, the option range is much tighter in ACBS, and each move has a greater significance on whether you win or not. Therefore it's necessary to plan further in advance in order to play well.