The passenger side plate will be different because it needs to conform to the windshield washer fluid bottle. That bottle is extremely close to the fender liner so there's not much room for error. The slight bend in the passenger panel allows the plate to slip behind the bottle itself. If the lip was the same length with the different bend, it would protrude into the fender area causing less clearance for tires. Again, a fine line we're dancing here.
I've had a few folks install these so far without any issues. One buyer had larger tires than what I tested with so he had to modify the passenger side panel a bit (he moved it forward by creating new mounting holes).
Here's his drivers side photo he sent me. On the drivers side there's no obstructions so I was able to make the lip a tad bit larger to allow an easier time mounting the fender liner.
View attachment 3881319