Well, it wasn't pointless. It's all about creating jobs. Jobs for players, coaches, staff, stadium workers, parking lot attendants, web designers, fan clothing retailers, etc. NFL is a huge money machine. Cities want to have an NFL team if they could get an owner, a stadium and financing to bring it in. It brings in revenue and income to the local city. They could have come in last place. They made mistakes. Next season, they can try to fix it. Other teams have done worse. You could shuffle around players, pick up some new players or coaching/staff personnel. But, it really doesn't matter as long as you have a team and the owner and league are making money. It's all one huge facade and Americans are buying into it!
Side note, if you are a fan of a particular Chiefs player or players, then this season was worth it. Regular season stats and numbers are meaningful. That's my two cents.