I agree, I had some scepticism myself about this bad end. I like the idea of wolf just gluing itself to you, but it does feel abrupt and maybe would be better to be repeatable.
I am actually thinking the game might need a 3rd medkit, because yellow one remove horny/drone state, but that also prevents exploration in this form, instead this new one could lock the state permanently, but prevent progressing towards bad ends maybe.
There are is no save system yet. I understand this concern very well. I decide demo is short enough, and instead I focused on other features. In the future save system is planned and infirmaries will act as safe rooms, RE style, where you will be able to save the game. At least that's the plan. Thank you for your feedback!