I made the mistake of reading 4chan thanks to that link, but this was an interesting comment.
View attachment 88510
I think the Disney trips and con trips did improve group cohesion, and people are less likely to leave a company where they are friends with their coworkers. I don't think Sakana deliberately planned it, it's just a combination of wanting to expand the brand through convention appearances, the talents wanting to go to Disneyland, since several of them live in California, and Sakana's autist luck.