Just specced from shadow to disc and noticed that my crit did not change one bit even though force of will is supposed to bring it up by 5%, dont know if the spell damage part of it works though.
Also calculated my int + crit rating and other talents and it is very clear that the talent is bugged and not working.
Did you test it somehow by chain casting spells and counting crits/casts or you just say that cause your crit % didn’t go up on your stats panel? Cause if it’s the 2nd then i think it’s probably right.
When you spec the holy specialization talent your general crit % won’t go up, only your holy crit. I think if you mouse over on your spell crit % you can see the holy being higher even without addon for character panel improve/change. With that in mind I can see the FoW not increasing the overall crit % since it affects only the offensive spells.