I actually liked that Adam and Eve scene with the flashbacks. I thought it was done well artistically and thematically. I've read that a lot of fans felt like the flashback to season one was cheap, but I got the impression that people were missing the point. I thought it was an interesting way to bring things full circle. It highlighted the opposition between Locke and Jack, faith vs. science.
Anyway, I think the writers wrote themselves into a position where information is spoon fed to the audience in order to advance the plot when, with better planning, could have been revealed in a better, more clever way. There's a lot of stalling, a lot of false starts and, thus far, abandoned subplots. Again, I ask what exactly did Ilana add to the show. An interesting character with a loaded backstory, but nothing else. Ab Aeterno was one of the best episodes of the series, but for the 9th episode of the final season, it spent a lot of time telling the audience like 3 things. 1. Richard came to The Island on The Black Rock. 2. Jacob made it so Richard doesn't age. 3. A metaphor attempting to explain what the island. I don't need to be spoon fed information. However, I would like enough information in order to draw a logical conclusion, not 5 logical conclusions. And this has been said before, but not everything needs an explanation but I am a little confused over the priority the writers are giving certain mysteries. It was nice to know who Adam and Eve were, but ultimately, there are more pressing matters.
Don't get me wrong. I'm a big fan of the show and for the most part, they've done well in almost every aspect of the show. However, I feel like some things are being handled poorly which is normal. The writing is spotty in places. Big deal. It's still better written than most shows on currently on TV. RIP Wonderfalls.