I'm the opposite of that. 1st of all... I'm going to see Superman. I'm not interested in a Lois Lane movie. There is a push nowdays to turn every superhero into a 'team' and make them the least interesting part of their own show... I don't want that for Superman. It's bad enough that movies already have a hard time balancing the story time with Superman and Clark Kent... I don't need deep dive focusing on Lois, Perry and Jimmy too.
2nd, I feel we've already SEEN the whole 'Show from Lois's perspective' with Lois and Clark and Smallville. We've already seen a rookie Lois and it wasn't very interesting.
3rd. I think it ruins her character to start there. Lois is MEANT to be the accomplished veteran who's made her mark and is a well respected journalist when Clark first walks into the Daily Planet. If we start her over from nothing... then it's going to just be ANOTHER movie about the poor misunderstood woman fighting to prover herself in a mans world... AND what will inevitably happen is this... She won't be ANYTHING without Superman there to write about. We've already seen shades of 'What would Lois be if she wasn't writing about Superman'... and this will cement it. Even with all those other stories making superman the center of her career... she still HAD a career before he showed up. Often times already won a Pulitzer. Lois needs to already be awesome before she even sees a cape.
Honestly Amy Adam's Lois was my favorite thing about that franchise. It's the one thing I wouldn't change. (Actually liked Cavill too but everything he had to work with tarnished his performance to me) This was one of my biggest problems with Superman Returns. Lois was an award winning journalist... being played by a woman who was 23.... with a 5 year gap in the story... Meaning that her awards and everything 'Superman related' was before she was 18.... She was just... TOO young for that role.