Launching a legal action; The Times talks of his getting an injunction to prevent the proposed inquiry; is quite the stupidest thing he could do. He plainly has no self-perception. His alleged behaviour is that of a man who thinks he can do what he likes, the supposed victims being highly unlikely to risk complaining at the time. He was a very important figure. They were not. In short, he appears as something of a bully, who abused his position.
Now how does that fit with threatening legal action, not against the women (he could take his chance in defamation proceedings; one wonders, but not for long, why he hasn't) but against the Party ? Sounds like the action of a bully. Robert Maxwell comes to mind, and that is not an image which he should be associating himself with.
Plus, he is set fair to lose if the Party calls his bluff, but he is banking on scaring them by the cost.