Yes, we need it. As I said in other thread, cheats are ok. Playing overpowered hero is ok. But it should be conscious decision. Not an accident.
Situations where you pick some talent, or play a class you like in general and suddenly realize that the game became ridiculously easy, shouldn't happen. Save scumming and other ways of abusing game system to became more powerful, are ok for me, because you doing it consciously, you want to do it, this is your decision to make game easier for yourself. But when you just buy a new RPG game, pick a warrior class coz you like playing warriors, and then pick some talents which looks funny (e.g leech and comeback kid) and BOOM, ure immortal and there is completely no challenge even if you switch to hard difficulty - there is clearly something wrong with that game.
Lack of balance isn't a problem for experienced, "hardcore" players who know the game very well, because they just won't pick the overpowered traits, won't use overpowered builds, they can make the game very hard for them if they want. But it can completely spoil the fun for new players. Most fun in the RPG, comes from overcoming difficulties, from becoming more, and more powerful. If you became immortal by accident, there is no point in playing anymore. It becomes boring. Fight are just fillers, winning lacks any sense of accomplishment, you feel no satisfaction. The game just starts to suck.
I'm pretty sure you didn't just "accidentally" pick leech either. You read the description and made a conscious choice to use it.
If you want to bring back the challenge because you accidentally chose leech + comeback kid, you can easily do so. Throw away your orange, green and blue gear. Use white gear only or no armor. Now leech can't heal you as efficiently and your resistances can't protect you from magic.
I get what you are saying, but any problem of human invention can be solved by human means. You aren't as stuck as you think you are.
