It’s understandable that Feige was concerned about a world-defining event like The Blip getting forgotten as audiences turned their attention to the next phase of the MCU. That being said, it was the MCU itself that kind of forgot about The Blip the moment it happened. Sure, it was used for moments of great sorrow and trauma, but mostly in Disney+ shows like “WandaVision” and “The Falcon and the Winter Soldier.”
Those series referenced and showed both the personal grief caused by The Blip and the global repercussions and social movements that erupted in its wake. When it came to the MCU’s movies, “Ant-Man and the Wasp: Quantumania” similarly alluded to the homelessness that resulted from the Blip, along with the awkwardness of people being declared dead for five years before suddenly returning. Other than that, though, as time went on, it wasn’t audiences that stopped caring about The Blip. It was the MCU itself that pushed it aside, save for a quick nod every once in a while and not much else.
Of course, that’s nothing new for the franchise. Time and time again, huge world-changing events like the Sokovia Accords in “Captain America: Civil War,” the giant Celestial popping out of the ocean in “Eternals,” and the Earth-based colony of New Asgard introduced in “Endgame” are largely forgotten despite having dramatically changed things in the MCU. Now, as we approach yet another massive crossover event with “Avengers: Secret Wars” (one that could potentially even reboot the entire universe), it doesn’t seem likely that the franchise will bring back many of its previous world-changing events to show how they’ve affected people.