People get hype for Wong comebacks because he has a knack for doing this across the genre, in games that don't have mechanics in place to specifically facilitate a comeback process. One game in particular, comebacks were so rare, people would often walk away from the cabinet if they got down to their last character. Wong used to make comebacks in that game, routinely. You might have heard of it. It was Called Marvel vs. Capcom 2.
You're ejaculating in your cubical space, here. If you narrow the context of comebacks to Marvel 3 and that game's competitive base, comebacks are to be expected, because the XF mechanic was designed to be powerful enough to make them routine. They're mundane and stupid to someone like me, who grew up playing FGs where a comeback wasn't facilitated by the game's design team handing you a cudgel. All comeback circumstances require skillful decision making, but when a player is forced to rely more on his own genius and will to create the circumstances necessary for a comeback, rather than just press 4 buttons, that's more hype, because it's more skillful. Not hard to understand.
If your anchor touches the ground with XF3, and your opponent lacks XF, the game is in your favor, no matter how many characters they have. It's too dependent on XF as a resource.