But, about what you said there, the issue isn't Lois Lane being kept perfect. No one is perfect, not even Superman. However, a Lois Lane who would go off on a whim and expose Clark Kent over hurt feelings without stopping herself and thinking " wait...by doing this I pretty much not only ruin my best friends life, and put a target on my head, but pretty much disrupt the lives of all my coworkers, my sister, my father all the innocent people that happen to be Clark's neighbors, everyone in Smallville..." Well...to me that is highly reckless and selfish and makes her look like not just a bad reporter, but just a horrible all round person, and being sorry later won't cut it. If it turns out Lois did indeed expose Clark because her feelings got hurt, then I don't see how the character can be redeemed in this continuity short of it later being revealed she was replaced by a double or mind controlled.
If it turns out it was a dire life and death situation that causes it, (which is what everything is pointing to at the moment
EDIT: and now thrown into doubt thanks to this article today), then yes, it's completely consistent with who we know Lois is. The above I described ends up being the case...they might as well kill off her character or otherwise write her out completely, because the character is irrevocably destroyed.