to add on to this, the video is dated in june 2021, and the patent show in japan wasnt registered until december 2021, which means palworld was already well on the way prior to them actually submitting these patents.
all three of the patents listed in the article have a japanese patent registered on 12/22/21. Palworld appears to have working gameplay mechanics by june of 2021 as shown by their announcement trailer.
I feel like it’s because they can’t milk that mode for profit like war-zone and standard MP, PvP environments allow for more glamour opportunities than a PvE environment because everyone else is focused more on the enemies then what their partner has. Nobody sees the cool looking designs and are like “wow that’s cool I should get that” like they do in PvP modes.