@siracusa Just listened to the show! Some clarifications:
@marcoarment is right - NEC 210.52(C) did make outlets on the side of kitchen islands illegal. He’s also right that putting a grommet in the middle of the island is a spill hazard.
In my case, the entire wooden part is just a top, so if anything did spill, it would just land on the floor and not leak into a cabinet. Also, the outlet in the island is actually IN the island, not on the side. Cords all run through a small notch in the back of the island to an internal outlet.