Don't agree in terms of pure luck in its true sense (Cambridge Dictionary: "...the force that causes things to happen to you by chance and not as a result of your own efforts or abilities"). You can't "make" that. Brentford did nothing to "create" the penalty, unless you can call diving "creative".
I do agree, however, that when confidence is high, more things seem to go your way, Again, though, Champs you are surely going too far in suggesting Bennett MAKES the team more unlucky! As you say, for one of the penalties awarded against him, he was actually already on the floor, and the opposition player deliberately ran into him. It was just as bad a decision as the one on Saturday. So - yes - you CAN call it bad luck! What is the alternative? To argue that if it had been someone other than Bennett, the Huddersfield player wouldn't have done it?
No-one sane is arguing that the team isn't much improved. I am just against you writing players off altogether.
I gather that Buckley struggled a bit on Saturday, in a defensive sense. Several fans on the Telegraph site have said that if we were going to play 4-4-2, it might have been better to have Bennett out wide in his natural position. I don't know because I didn't see the game, but it does demonstrate that not everyone sees EB in the same totally negative light as you.