If this is really the end, I think the author is not brave enough to actually tackle cosmic horror and open up lores directly so they created a short, vague and simplified version then made it comedic so everyone can just justify and over analyze the mess.
This was good enough, cosmic horror and time loop is not that simply to write it is better to be honest about your habilities and create a short one than expand it and make a mess.
If this is really the end, I think the author is not brave enough to actually tackle cosmic horror and open up lores directly so they created a short, vague and simplified version then made it comedic so everyone can just justify and over analyze the mess.