Corner Kit for Doorbell Pro

Very disappointed in the corner kit for Doorbell Pro on the Ring U.K. website here https://en-uk.ring.com/products/corner-kit-for-video-doorbell-pro (photo attached excuse the writing I used my finger to write on my phone) the corner kit shows that the left hand side has a part cut out that I assume is potentially for the wiring maybe specifically for plug in adaptor users (https://en-uk.ring.com/products/plug-in-adapter-for-ring-video-doorbell-pro) who don’t have existing wiring and who can’t go through the wall directly behind the doorbell however the corner kits don’t come with the part cut out meaning if you are using the plug in adaptor and you can’t go directly through the wall into the back of the doorbell then you need to improvise I’ve had to do the cutting myself and had to make a small gap in the side to pass the plug in adaptor wire through poor that the plug in adaptor users haven’t been thought about considering it’s actually £17 for a bit of cheap plastic