I knew that Big Hero 6 was originally a Marvel comic. Quite frankly, it was lame, and originally intended as a way for Marvel to capture the weeaboo dollar. Disney was looking through the back catalog of their acquisition, Marvel, for properties to adapt into animation, came across BH6, and set it in its own universe which in many ways is even more grounded than the MCU. Sometimes, an adaptation -- even a Disneyfication -- brings out the best elements of the original and leaves behind the junk.