The move 23... b6 is of interest; the bishop can go to d4 later; it might also go to e5 in some positions.  That is the main alternative I would like to see tested in a practical OTB or blitz game.  As we discussed in the video, don't give white the a-file (with the game move 23... b5) and solidify the b6-c5 pawn chain.  Accept that the d6 pawn is lost and play around it.

23...Bd4 24.Ncxd6 b6 or 23... b6?

I'd like people to test out the suggested improvement of 23...b6 instead of game 23...b5

On 31.. Bxe3?? 32. Nf3+ it leads to checkmate rather than simply winning a queen for a knight ;).

At move 27, besides the 27...g5 suggested in the annotations, Black can also play 27..c4 or 27..b4 and get the queenside Pawns moving. I don't think there's any advantage here, but there are chances.

White's "Pawn structure" consists almost entirely of latent and present targets.  h6 will fall for sure and b2 isn't so healthy.

Listen to the http://www.chess.com/video/player/modern-benoni-1-the-amanovs-thrilling-battle video and post analysis questions about the key lines.

Outstanding.  This is of great interest to me because I sometimes have this with reversed colors via a Reti:  1.Nf3 d5 2.c4 d4!?