The long-running Bleach anime has its roots in a bygone era of shonen anime. Bleach and its "shonen big three" peers Naruto and One Piece were all launched around the turn of the millennium, when the anime industry and its fans had different tastes and expectations than they do now. That means when the current Bleach: Thousand-Year Blood War anime brings back its earliest characters and ideas, such as Kon, something must change.
Source：https://www.cbr.com/kon-post-credits-skit/
