Actually most corruptions are still pretty terrible. Maybe I just got the worst possible set [I didn't], but I traded: 6 St, 15 To, 16 Pe and 5 PV for 14 Le and 4 Wi in a recent game. (This takes out of consideration the bonuses from being a Mist Elf and having 16 corruptions: +5 St, +5 To, -5 Wi for the stats above, so the 'real' difference [only on a Mist Elf] is -1 St, -10 To, +1 Wi between 16 corruptions and 0 corruptions. That's still very bad). For any character, that's absolutely excruciating. Considering I didn't even have some really bad ones, it could have been much worse (I also find it bizarre that people think the new corruptions are less harmful. There used to be only two [sometimes three] corruptions you absolutely had to get rid of, and that has more than doubled). In general, I find that your To takes quite the hit, and there are very few corruptions that positively affect melee/melee stats. As for whether that is a reason to change the current system; well, probably not.
Citronvand: You get 30% faster corruption at C-, but this only matter for very corrupting levels and getting hit by corrupting attacks. It is usually not that noticeable.