The 4 C's of good technical communication:
Concision not only saves the audience time, it cuts out distracting verbiage and helps avoid burying key information in a sea of boiler plate.
Audiences very often revisit sources, and concision makes it easier to relocate particular bits of information.
Smaller pieces are easier to rearrange, and so in practice, the more concise, the more authors are likely to work out an ideal structure.