Tom Sawyer is not short. The course starts on soccer fields and is in a well manicured flat park, thus its fast. It gets slow with rain... NAIA nationals there a few years ago are proof of it. Remember the course is not at altitude, does not have treacherous footing, and does not have undulating hills like the Griak course.
Meanwhile, EP Tom Sawyer is not a soccer complex like the site of Memphis Twilight, nor does it have ample amounts of pavement like Willamette out in OR. Also remember that most of the courses in SO Cal. are practically road events.
I'll put this out there, but assume that you are from the midwest, east, or mountains. There are many fast courses in the south and out west. Isn't it nice that everyone runs on the same course for their respective national meets?