Warrior General Games

http://glb2.warriorgeneral.com/game/replay/9525/1612330

Here's what I know . . .

Two safeties in deep zone.
Man corners on the WR.
LOLB blitzes by design.
LILB covers the TE.

Here's what I do not know . . .

Why do the ROLB and RILB both cover the HB, leaving the FB without coverage. One of those guys should follow the FB, right?

I remember seeing that a couple of times before in one of my games. I was wondering why they both went for the HB.