Counter question: what is the benefit to naming the accused based only on a preliminary accusation? This kind of stuff should not be played out in the court of public opinion.
Comrie retains the presumption of innocence, and 'the court of public opinion' is a baseless, ephemeral concept with no bearing on reality. The fact that his name is plastered around the internet with obviously catastrophic connotations only lends him more actionable recourse in the event that the prosecution is not able to demonstrate the burden of proof.
Placing limitations on the naming of defendants in rape and sexual assault cases also creates a significant hurdle in terms of precedent. Simply put, providing defendant anonymity in sexual assault cases would likely result in a push for defendant anonymity in non-sexual offences of a similar magnitude. At that point there would have to be an effort to qualitatively arrange offences in terms of their severity or stigma, which are decidedly non-qualitative properties.
There is a debate to be had over this topic, and it is an intriguing one, but I suspect it will not likely reach a resolution in my/our lifetime..