If there's anything I've seen from Japan is that if they want a character, they will never ****ing stop pushing.
This was pretty evident with King K. Rool back during Smash For, especially with the whole Mii Costume thing. But even with K. Rool having a Mii Costume, did that stop the Japanese? Of course not. The OG Donkey Kong Country trilogy is seen by the Japanese as a "supreme master-class", especially DKC2, so I see why Japan would want K. Rool so much during these years.
Something I've noticed is that when Japan collectively pushes a character if they appear number one on so many polls, just like King K. Rool, they usually tend to get their wishes granted, more so than here in America and other countries, which makes me really sus about Rex & Pyra.
I know that some people are feeling fishy about no Porky spirit in lieu for the Absolutely Safe Capsule, but I dunno, having no Counterattack alongside XBC2 content makes me feel a bit sus, especially after the praise Sakurai gives that game and with Nintendo pushing the IP.