An assessment is easy to postpone. It has no invoice attached to not doing it, no deadline, and no vendor calling every quarter. It competes for budget against things with obvious price tags, and it loses, and then eighteen months later somebody is explaining a control finding to an audit committee.
So this page does not argue that the assessment is good value. It argues something narrower and more useful: the cost already exists. It is on your books right now, it recurs every year, and the only thing an assessment changes is whether anyone can see it. Start with the piece that is pure arithmetic.