I'm not sure that "perfectly entitled to perform" statement holds up. "Legally" entitled to perform, yes... "Morally" entitled to perform, hmmm.

It does seem Twitter was willing to deprive a benefit (read exposure/revenue) granted to TC on the basis the documents were leaked. In the future if TC had interesting/harmful information on Twitter to reveal they would decide commercially whether to publish by taking into account any negative impact for them in exposure on twitter.

That's unhealthy isn't it? Twitter would be less likely to receive negative/unhelpful press than other similar companies on the basis they can punish those who do it.

I know I'm deliberately talking up what happened here but it is an interesting question, to me at least