looking at your photo, id discribe the damage as a "run"
i was a glass cutter for 3 years, and even though i never worked on windscreens, i did work with toughened and laminated glass.
laminated usually does not run. it goes "bang!"
if your screen is laminated, the crack will work its way acoss the screen, each time the car hits a bump ect.
for what its worth, and forgive me if you have done it, its a new screen imo.