I have attached a diagram I hope better explains the situation. On the diagram you have a standard fork shown in red, the LG fork shown in green and PR-6 form in blue. All the forks have the same rake and FC and therefore the handling comes down to the fork shape.

The critical thing to remember is that the PR6 is a super bike meaning you end up with a whole lot of bike in front of the steering axis. This is equivalent to the orange area on Dan's diagram. The way the PR6 tries to counter this is by not centering the dropout but ensuring most of the fork is behind the fork rake line. I agree its still not behind the steering axis but I still think it does the same job because its behind the fork rake line. At a minimum centering the dropouts on a similar massive fork while maintaining the rake would only put more surface area where you don't want it.

The LG takes the same principle but because its a standard bike the whole lot is shifted back hence the fork is behind the steering axis. This should provide a much more stability that than the PR-6 but is only possible because its not a superbike.