My problem with Kavanaugh was his lying about his drinking (and some evidence that he lied about his role in the Bush White House in certain matters). Whether an assault actually occurred is unknown, and it's very possible, given the evidence of his heavy drinking, that he couldn't remember. What bothered me was his self-righteousness and evasivenss when it's obvious he was an abusive drinker (through law school) and he tried to brush it off instead of admitting, like many people, especially in that era, he behaved badly. I don't think what you did thirty years ago should ruin your life, but lying about it is a red flag for any lawyer.
The so-called assault has not been detailed, you have a drunk girl, being "assaulted" by two drunk women of fairly similar age (I presume), something that's a rare occurrence. She didn't need medical attention, and anyone in real life would not want the police involved (gee, young lady, you're 17 and you were drinking at a party . . . let's send you over to social services, the two women could face felony charges, the ball players serving minors and buying alcohol (if they were under 21).
The sexual assault claim didn't pop up until well after the fact, and after Kapler tried to resolve the incident. I think the Dodgers handled it correctly given what they knew, there was no real harm done, and making it a police matter could harm all involved (a police record is not something to be taken lightly, and we're probably dealing with kids with limited financial resources).
And no lawyer should believe a victim per se, the whole point of not blaming the victim is a very different matter, that involves an attitude that if you went into the room (or wore that tight dress) you were "asking for it" and have only yourself to blame. That is, a sexual assault can be excused by the victim's behavior. That extends to taking a victim's accusation seriously, i.e., worthy of investigation, irregardless of the circumstances of the victim. The key word is investigation, not assumption of guilt.
Lawyers and judges and journalists should be skeptical of all witnesses, including the alleged victim, until the facts are in. As the Washington Mall incident shows, the rush to judge is ill considered. Or the Duke Lacrosse team incident.