KEL IS SUCH A TERRIBLE CHARACTER THAT I MADE A BLOG DEDICATED TO HIM (derogatory)
before you ask I have a PhD in Kel so whatever I say is valid and so true hell yeah
Thinking about it, I don't know if people realize that Omori ends the way it does because the game is about the beginning of the recovery process. The first step is typically the hardest one to take, and it's a lot of just admitting in the first place that something is wrong. It's okay that we don't see the reactions to the truth, or that we don't get to know all the details of what happened after the hospital. The game ends where the character arcs for the story conclude, and anything else would (imo) just feel like bloat. The reactions, with all honestly, do not matter in the context of the game's themes itself; what does matter is that Sunny was willing to face everything and just tell the truth, no matter what happens. These people deserve to know, and so he tells them. The guilt for him and Basil is gone now that the friends know what really happened, and it's through that action the two of them can truly begin to heal.
omori fans will be like "kel is so much more complex than people think, there's so much pain and uncertainty dwelling under the surface of his character!" and then shit themselves at the mere idea that kel might not have a good reaction to the truth