I can't imagine why they would do this. Was the article badly worded or something? You're certainly not libelous for saying "Person A says Person B sexually assaulted her" if Person A said so publicly on a blog.
Framing the headline that way is misleading as the Google gal is the alleged victim in that incident.
The story was trivialised on TechCrunch, and putting the twitter-trial/tech-spin on it seemed insensitive specially since the author was female. TC shouldn't have covered it in the first place, it’s something that lowly Gawker would go after (which they did), so let the bottom feeders have it.
This sort of issue should be resolved through the courts, not through blogs and twitter.