The amusing thing about all of this is that Boris and his spin doctor, the arch manipulators, seemed to be hoist on their own petard. They've campaigned for ages by making truth secondary to sentiment, and having political prejudice trump facts.
Now suddenly they're in the situation where they want to argue that "technically" Cummings was in the right. But it doesn't matter whether he was or not (I personally think not, in fact, big fat not). It's now a political issue in that what matters is not whether Cummings can weasel out of it on a technicality, but how the public perceive it, and the public are perceiving it very badly indeed (that's not me living in a left bubble - opinion polls show a majority of Tory voters think he was wrong, and a majority of Leave voters think he was wrong).
The not so amusing thing, in fact the bloody scary thing, is that this has blown up just as the government was starting to ease up on lockdown while we still have the second highest deaths per million of any country in the world (CDC data here), and R0 is nowhere near low enough. If cases begin to rocket back upwards, and Boris tries to call for a second lock down, not enough people will listen because Cummings has been a weaselly little gobshite and Boris has stood by him.
I want to know what the negatives show and where Cummings keeps them...