The Unlocker only provides the "permission" to play; it does not contain the actual game data (folders like EP01 , GP03 , etc.).
For many players, particularly younger demographics or those in regions with unfavorable currency exchange rates, the official route to a complete game is simply unfeasible. The All DLC mod is born from this exclusion. It acts as a digital Robin Hood, dismantling the paywalls that segregate the community. While illegal, the demand for such mods highlights a failure in accessibility, suggesting that the barrier to entry for a "full" life simulation is prohibitively high.
One of the most common searches in the Sims 4 community is for a mod that unlocks all Expansion, Game, and Stuff Packs without having to purchase them. While EA has made the Base Game free to play, the cost of the DLC library remains high.