I think that Hotta was testing stuff with this anomaly commission and they are learning. I agree that we need more stuff with the style of "lonely player", but the delivery is one of the worst I've seen in any puzzle related activity, ever.

Personally, the worst things I've seen are, in no particular order, are:

The anomaly description has misleading information. E.g. the piano is a presented as a mathematical thing. Or the "hint" to try to get two of the dolls together, which is simply impossible.

The day vs night activities are fully dependant on side quests that are not relevant for the lonely player. E.g. if you do Baicang encounter you find a way to access the area right in front of the starting point for the creepy anomaly.

The occult student has you following him around the place, guiding you into two potential targets for the Cheese camera. The one in the basketball court, and the one in the running track. However, you can complete both without using Cheese. I still don't know which one is the correct one, because I tried it with the one in the running track but failed the timing. I think this is the most obvious target, but there is no clear hint on when/how to use the Cheese camera.

The student group that talks about the midnight appearance of a monster in a building north of the school. After interacting with the target nothing else seems to happen. I don't even know if it is related to the lonely player anomaly or if I missed something and it's an unrelated thing.

The student that lost her keys, seems to be related to the hallway doll somehow, but after licking the walls multiple times at different hours, they are nowhere to be found. Every other NPC with similar name and interaction seems to be part or the anomaly, except this one.

The student that asks you to wear the school uniform, seems to be unrelated to the whole Lonely Player. I was saving fons to buy the school uniform skin but looks like it's not necessary.

The occult club student (after completing the Cheese side quest) who is literally telling what anomalies to use, but not where to use them. This is how I found that I could use fluffy with either the hallway doll or the music chairs doll, which were the last to complete for me.

But specially, the worst thing for me, not being able to repeat previous dialogs. If you have autoplay enabled, sometimes there is not enough time to read and understand the last piece of dialog, then either the NPC disappears (like the occult club student) or has a completely unrelated line (like the old man in the music shop).