OK reasonable question. The pawn on e5 is a major space gaining , bone in the throat problem for black. it has to be dealt with in some respect. ...d5 removes the tension from the pawn and leaves the position cramped for Black. It also causes major issues for the Black light squared bishop and its development and future as a useful piece. Did I do a computer check everything nope but my gut is telling me and experience with years of playing the french that releasing tension on the center gives white a free hand to develop and leaves me with a bishop that is just a shadow piece. I have lost enough endgames as black in similar structures to have just this sick feeling in my stomach when I see the bishop get locked in with no real way to generate counterplay for black. So yes I say that the move ...d5 is bad for strategical reasons in this specific case.
That pawn is not going to do much damage. You might as well attack the bishop.
Keep pressure on the pawn at the cost of making black waste a move seems like a huge sacrifice.
OK reasonable question. The pawn on e5 is a major space gaining , bone in the throat problem for black. it has to be dealt with in some respect. ...d5 removes the tension from the pawn and leaves the position cramped for Black. It also causes major issues for the Black light squared bishop and its development and future as a useful piece. Did I do a computer check everything nope but my gut is telling me and experience with years of playing the french that releasing tension on the center gives white a free hand to develop and leaves me with a bishop that is just a shadow piece. I have lost enough endgames as black in similar structures to have just this sick feeling in my stomach when I see the bishop get locked in with no real way to generate counterplay for black. So yes I say that the move ...d5 is bad for strategical reasons in this specific case.