If we think about it, during early floors where parchment is most helpful, it’s very difficult to immediately pay the 51 energy cost unless you throw all your useful scrolls and potions immediately, which is too dangerous especially when playing with challenges. But if you keep it at +0 you’ll end up encountering more curses, which also makes things difficult. By the time you reach the prison’s alchemy room, you could pay the 51 cost, but by then you already have plenty of remove curse scrolls from drops and shops (which guarantee RC scrolls), and you might’ve encountered anti-curse wells too. By the caves, I have my final gear already, so parchment became useless starting from here. So for me personally, the 51 energy is terrible and could be used for many other important things, curses are never an issue in my games but that’s just my personal thinking.
I never said that “changes are not deliberate”. I’m only saying that, in my opinion, the original clover’s high rolls to the hero probably shouldn’t happen again.