Probably more like a soliton, like a tidal bore, rather than a random constructive wave interference phenomenon. A soliton can persist for a lot longer than a random interference node. Quite an interesting thing.
Actually the rogue wave occurs in open ocean, and is very much an interference phenomenon. They are of exceeding short duration. They collapse almost immediately and do not propagate.
You just don’t want to be sitting or sailing on the face of one when it rises up.
Now, there are some who associate an increased probablilty of the appearnace of these giant waves with the presence of seamounts - not banks or reefs, but fairly deep seamounts. I can’t entirely discount this, but it does seem that the depth of water over the seamount would need to be less than the wavelength of the ocean wave to shorten the wavelength and increase the amplitude of the wave at the surface.