There is, of course, only one possible conclusion: people in L.A. are dumber than people in Oakland. That's why the Raiders moved back.
Seriously, my precinct used paper ballots (with a pen to mark the choice), so I can't say that I know how the computerized ballots work. But I'll bet the screen showed only one decision per page, allowing you to focus on each task at hand, and insuring you at least consider each one. On the other hand, a paper ballot has many decisions on a single page (or in this case, two) so it would be easy to miss the first one. It doesn't change the fact that it was the voter's own damn fault for not voting properly.
I would doubt that. My district went to computer voting last election, and the screens were pretty close to the multiple choice pages we had before. I imagine that the districts have the same options to design these screens as they did to design ballots before.
One thing I don't know is whether the review screen shows only the choices you made, or whether it also shows contests where you failed to make a selection.
I don't think the computerized voting machines are any better than the punched cards. They might even be worse.