I don't understand why the service life is relevant here, unless ANA wasn't maintaining their planes properly which I doubt is the case given the reputation of this airline.
I included it because in theory it shows that the windshield was either overdue for replacement or it wasn't an original windshield, so it's not evidence of failure on Boeing's part in the initial manufacture of the plane.
Admittedly, I don't know much about how maintenance works for these planes, so there could be something I'm missing.
I'd wait with any judgment until the inevitable investigation has run its course because there are just as many ways in which it could be a Boeing issue as there are ways in which it can't. Anything specific about this failure is right now mostly speculation. Also, and maybe surprisingly to some, cracked cockpit windows are not a big deal as long as they stay in place until the landing because they are multi-layered and ridiculously strong to begin with.
