A deckbuilding question:

According to MTG Goldfish every Gruul Delirium deck in standard runs exactly one copy of Commercial District, which is the red-green surveil land. What could be the reasoning behind this?

I get that a single surveil land can be valuable in fixing a topdeck when you can tutor for it, e.g. with a fetch land. But there doesn’t seem to be a way to do that in these decks.

Delirium decks care about graveyard, so in that sense it’s not out of place, but then again why only one?

Is there something I’m missing, or is just something along the lines of “Well I need one more land, let’s go with that 🤷🏻‍♀️”