You might say it's actually the RU Screw west coast style, just that it's the host directional Cali school trying to make RU fans feel at home by screwing them out of the Trojan brand of tailgate experience 3,000 miles away. A decision that doesn't make much sense, but they know that we're used to getting screwed and have learned well how to suck it up.
Since the stadium area has tailgating and is just a short walk across the way from their campus that's still an option for some. Not sure how much appeal there is with tailgating deeper within the campus anyway.