While I do think plackets look good on shirts and would love to wear them on my crew, I don't think it's practical for high school officials. Lots of officials work many different positions as fill-ins and also work many different positions on sub-varsity games. That would require a lot of different plackets, and you know how some (most) high school officials get about buying new things for their uniform that isn't a bare necessity. Then you get the issue of do you sew it on or pin it on if you work multiple positions? You'll get some guys that sew it and some guys that pin it, and the guys that pin it usually do a terrible job at it. Then, if you made it optional for varsity, then some crews would have them and some not, which would look terrible for officials in the state as a whole. Then there's that guy that's going to buy 1 shirt with 1 placket and wear that no matter what position he may be working that Friday night.
From a looks standpoint, I say yes. From a practicality standpoint, DEFINITELY NO!!