Wow, thanks so much for this feedback. I'm truly impressed by the quality and quantity of information in there. And thanks so much for playing the game, I think you are the first player to finish it so... congrats !
As you mentioned, most of the bugs/issues you mentioned are due to my self imposed time limit. This limit was simultaneously a great and a terrible idea, great for all the lessons learned and increasing my gamedev skills, but terrible for the game itself. I had noticed most of the inconsequential bugs, which are due to the lack of time to fix them, and the one's I hadn't noticed seem to be due to a lack of playtesting.
Some of the annoying issues are inherent to the sheep and wolf AI. As I didn't use any specific AI tool to build them, their behavior is now very hard to modify without adding a ton of bugs. I'll be digging into more specific tools for my next project.
I understand the black sheep is frustrating. The way the flee target works is that the sheep always flee the closest target. I had a try at changing this system last minute (by implementing a priority level to the flee targets, with the black sheep being the less prioritary, so that the player would override it). But it ended up breaking the game. I was hoping you would find a way to play around him ^^
I don't think I'll be working on the core systems anymore, but I'll be using your feedback to work on the easy to fix bugs and patch the game, so thanks so much for that. See you on my next project :D