Relax folks, it’s just me. I was watching all the episodes this fall
Because they’ve been watching it from the beginning.
Imagine if suddenly China discovered the Simpsons, and also the Simpsons had been telling a cohesive narrative from the beginning until now where the characters grow and change. Then China translated every Simpsons episode to Mandarin and Cantonese, and then they made a live-action Simpsons show with real actors, and they started by covering early stories from Monorail to Who Shot Mr. Burns.
The Simpsons has been on TV for 10 years longer, and hads made over 750 episodes since its debut in 1989. One Piece debuted in 1999, based on a manga that came out in 1997, and has produced over 1,080 episodes.
So if the Simpsons suddenly became popular in China, that might skew the search results on Baidu, but it’s not going to dramatically alter perceptions of the show in the USA.