Well I was told you should mount the Transducers on the starboard side of the boat to avoid propwash and bubbles from the propeller if it is on the port side. I guess because the rotation of the prop going forward would throw wash and bubbles upward on the port side.
May be splitting hairs here, methinks.

Your boat installation is correct according to above, but the video shows them installing on port side. I was more worried about the foot of the motor interfering than the 2D transducer. Just put mine on and have not tried it yet.