Yeah, I dislike perfect characters like Superman. If he is only vulnerable to kryptonite and magic that means that every movie has to have one of those two things... The older comics where it was more about his relationships and trying to do good while still maintaining the Clark Kent persona were more interesting to me. I prefer my heroes flawed, tormented, and grief stricken instead...
The lack of warning can be debatable... I mean a good twist shouldn't be predictable but then it also shouldn't come out of left field. Hopefully Drifty won't toss us into a similar situation with this game.
I think the flawed, tormented anti-hero is easy to overdo (and indeed, is often overdone these days), so I have a rather high tolerance for "perfect" characters. That said, ideally you want a spectrum. Paragons of virtue are often most interesting for the effect they can have on others - provided the others aren't just carbon copies. Similarly, the scars that torment a flawed character become a lot more meaningful if the character really is unusually grim compared to the norm.
I'd say this game has a pretty good spread across the various characters, so I'm hoping it will stay that way.
Personally, I've always thought Leap of Faith started as something of an homage to AL. There are a lot of parallels in the initial setup and even in some of the characters. Which is fine - this game is its own thing, and the beginning of AL was great. AL only fell apart in the last act when instead of showing how the survivors recovered from a terrible tragedy, it instead practically reveled in the misery. The MC literally spent a year in apparent isolation trying to put his psyche back together; the 'happy' ending for the survivors rang pretty hollow after that.
As long as Drifty can keep the focus on the characters and not obsess over whatever tragedies may befall them, this game is well positioned to keep the strengths of AL without the crippling weaknesses. I'm keeping my fingers crossed.