I suppose it's possible (if you don't know how the SWP operates or any SWP ex-members) to interpret the DC decision as being on a democratic mandate from below to ask those sorts of questions, conduct that kind of investigation etc.
But the fact that the argument from the DC/majority CC was on the basis of 'this is all in the past' and 'we deal with rape in our real jobs', all happening in a large conference hall with people worried about confidentiality and keeping things private to protect a woman, makes it appear as a grudging endorsement even from those who voted to accept the DC decision. It's a restrospective 'what's done is done', 'the investigation has been botched there's nothing more that can be done now' half-mandate.