When it comes to issues like this, its generally not the same as any other accusation of criminal wrong-doing. When you take the position that women are to be believed, you will invariably have cases of false accusations. Most of the time, you can tell the difference with some common sense.
This isn't that though.
This was a decade ago (long before the MeToo movement). The victim was a national media member (which does add to her credibility).
Oh and he friggen apologized! Which is as close to an admission you'll get. Now, you have his silence followed by very specific choice of words "negative interaction" which is used because he is guarding against more details coming out and he can say he didnt lie (I guess getting a handful of a reporter wasn't negative for JT).
Keep in mind, the victim didnt come forward. Someone came across the newspaper article and sent it to media.
The reason its relevant (besides the fact its the Prime Minister) is because the way you'd view this in the wake of MeToo is different and more serious and more damning of the men) and because JT's own position is, people accused of this conduct are not cabinet-worthy. Thus, by his own standards, he must resign.
The idea that this never happened simply doesnt pass the sniff test.
The victim wants to remain anonymous. I suspect JT's off statement is partially to avoid calling her a liar which could anger her enough to change her mind. We know from the Wab story how this plays out and you can bet JT's people have been in contact with the victim to ensure she remains anonymous.
Look, guys get drunk at get handsy all the time (women do too, by the way). There are worst crimes. But this is the Prime Minister, he's a hypocrite and he set the standard by which he should be judged. And by that standard, he's finished.