I can't say I feel sorry for Lexi, other than in a general sense of being sorry that she was so careless (and that's being charitable).
That marking was THE WORST I've ever seen (though admittedly, I don't gamble on the course, so I'm sure people will say they've seen worse). Calling that like a 16 handicapper is ridiculous. I've never seen an absolute beginner mark a ball so poorly. My son took a series of beginner lessons last summer that included competitions. If I had seen a kid mark like that, I would politely explain to him what he did wrong. It almost looked like she was doing it intentionally. I'll give her the benefit of the doubt that she was just being careless, but not calling that out would be making an absolute mockery of everyone who has diligently marked his or her ball throughout the history of golf.
I don't like the idea of call ins, or emails, but this problem is 100% of her own making, as are most of these situations. This wasn't something that required a microscopic analysis like DJ's last year or Paddy Harrington's a few years ago. Her caddy should have caught it, her playing partner should have caught it, the rules official should have caught it, the announcers should have caught it - all live, when it happened. I don't like a call-in affecting play either, but the fault lies entirely with her. But I like even less just shrugging my shoulders and saying, whatever, who cares, it didn't matter.
The competition was still open. I'd say a decent analogy would be video evidence showing a guy on the Tour de France shortcutting a hairpin turn when nobody was looking, and somebody catching it later. It should have been caught live, but I'm not at all ok with letting it stand because it was missed at the time.
So I guess I'm one of the few on here who stands with Padraig!