Desperate Measures allows a player to bypass these options, and use the special order without having enough modules
or strategic areas.
Strategic Areas do not increase that limit (check errata). Except of that part, all above is correct - instead of placing a single executed Special Order in a Special Order Pool on Faction Sheet, you can discard that Event card.
BTW: The effect is identical if you execute a Special Order on a planet where you control a Strategic Area - that order can be also removed from a board later without placing it in a pool.