No Borderlands 3 Preloads

A tweet from Tim Sweeney acknowledges that preloading Borderlands 3 will not be available through the Epic Games Store. PC Gamer notes the oddity of this, as the Epic Games Store Roadmap on Trello marks "Enable Preloading" as a feature that is already available. But in another response, the Epic Games CEO explains that trying to preload a "blockbuster" like the upcoming action/RPG sequel is "complicated":
I’m sorry, we won’t have support for preloading in the Borderlands release timeframe.

It’s Complicated. We’ve released support for file preloading which is sufficient for some games, but we aren’t certain it’s up to the demands of a blockbuster like Borderlands.