Some flat-Earthers use the so-called global conspiracy as an ‘escape hatch’ to abandon a losing argument. When being cornered, some flat-Earthers will tell us that flat Earth is a work in progress; it is normal for it to be incomplete, for now. “But the most important thing is to uncover the global conspiracy and save the world from these unscrupulous few!”
In reality, the global conspiracy theory is only one of so many concepts invented to prevent flat Earth from being falsified.