I agree with you a lot here, the entire point of games not giving you every ability at the start is so that it's not confusing :P if I did make a game about losing abilities it would have to introduce those abilities as well. It also might help be less "unsatisfying" if you had to switch abilities rather than have less of them overall. Also, could you let me know which section you got stuck on? I thought I had every section get rid of the ability that was required to get to the end but I could be wrong.