NFHS Preseason Guide 2018 -- a problem

[Freddy]

. . . inaccurate statement on p.11:
"Allowing a coach to move within the new box between the 28-foot mark and the endline provides a coach more access to his or her players."
Problem is -- and you can determine the ultimate significance of this -- that statement holds true for floors that are 84' or longer, as rule 1-13-2 states.However, floors less than that, according to Casebook 1.13.2C, must measure 14' from the division line, then extend the box to the endline. Shorter floors mean shorter coaching boxes. All floors keep coaches from legally wandering closer than 14' from the division line and, presumably, keep them from getting in front of the table while coaching.
Valid point?