The reason the Expendable Bonuses are so high is to be able to cover the Camo + Signals concept. Being able to run a +200% Expendable Bonus is similar to running a +100% Expendable Camo and another Signal.
While the outliers of Spring Sky/Asian Lantern levels of specific resource returns may not be achievable, the entire range of Expendable Camo + Signal Set is achievable with Expendable Bonuses alone. Instead of equipped 16+ things, you're just equipping a very powerful 1 thing (per Resource).