As I aluded to in my post, how expensive the AI is depends entirely on how complex and optimized is. Remember that the process of encoding and sending packets to a client and receiving/decoding/processing the client's packets in turn is completely skipped for bots.
Fortnite bots are very barebones and are only capable of performing a handful of simple tasks in repetitive ways. It's entirely plausible that the code responsible for governing their actions is fast enough to be less expensive than networking a real player.
Fortnite bots are very barebones and are only capable of performing a handful of simple tasks in repetitive ways. It's entirely plausible that the code responsible for governing their actions is fast enough to be less expensive than networking a real player.