Clearly White is better, but I don’t think Black is totally lost. Indeed White needs to develop his B and castle, but after 1. Bc4 a6 2. O-O b5 3. Be2 Bb7 Black seems no worse off than he was in the initial position. So if 1. Bc4 a6 2. a4 (to stop …b4) h6 (sac’ing a P to deflect the Q) 3. Qxh6 Qa5 Black is still hanging in the game. Chessadmirer's advice not to rush is right because, despite appearances, there is no immediate, crushing win for White.