Unless the person were a emitting a long, continuous fart, your analogy breaks down.
It would be more akin to walking behind someone smoking a cigarette or wearing half a bottle of perfume.
In that case, yes, you would get out of the *fragrance* range quicker if you walked past them in the other direction than following behind them.
So are you defending the following the arrows, herd mentality?
Just the opposite. Someone leaves a fart in the aisle, it doesn't matter from which direction you walk into it. This one way aisle thing is just more theater and virtue signaling.