Paranoid theory here, but I'm starting to think the reason for all the goo is they're packing it and the remaining fish/freeloaders into the RV to do a public selloff of the goo tubs with the fish that sells the most being the final winner. It gives a reason for them to have the RV there outside the sorta weak interseason ideas they were laughing their way through saying, lets Burt freak out on cam again for views, fits into why they wanted so many goo tubs cranked out, and it also explains randomly extending the season by three days since that'd give more time for making goo or might even factor into however far away the destination is that they'd need more time added onto the season clock.