Do you still meet NESC clearance requirements at your worst case wind storms and ice storms? Would your fiber survive these storms?
First, the code requires that you meet clearance requirements. Second, you can be sued if you don't meet code and there's a problem. Third, recent extensive research on ice storm historical data has indicated that in many areas, your fiber network may likely experience at least one ice storm exceeding NESC loading during the life of your fiber network (we've got a tech note on this). Finally, heavily sagging fiber cables blocking roads get cut by cleanup crews if they're in the way.