Interesting. I didn't know that. I'm guessing that's something about worrying if the flywheel will explode and cut through it or knock off the hoses. Seems a little ridiculous when there are two lines much closer to this that would be legal. I have an SFI bellhousing too.
At this point I am not worried about it. Once you see the engine bay with everything installed, you'll see that it's probably going to be difficult to have it 6" forward of the firewall without changing which end is the feed and which is the return, which would be an epic pain right now.