One officer, shouting a lot of twonk on Twitter and getting into the media however, is going to cast grubby public perception on the other 144,999. Which is one of Braverman's points. One twit can cause a hell of a lot of damage, and the public are going to rightfully wonder wtf happens at the police if that person is a part of it and using their job to further their interesting agenda and views, and the police let them crack on like this instead of loudly and publicly rejecting it.
It's somewhat like the 'nice TW friend nothing to do with the raving lunatics' argument: the fact is that the raving lunatics are the ones with the media and political control, and cannot be nicely ignored and allowed to get on with their machinations for fear of upsetting a quiet, normal mate. In fact you'd think the quiet, normal mate would be part of a group saying ffs, no, not in our name, this is not a trans thing, this is a misogynistic extremist thing. But never happens.
And sadly in fact, no, it's not just one. That twit on Twitter has not been the one and only copper on duty at every incident where cops have stood by and watched women being battered, or lifted a woman for daring to state factual heresy against the Faith. Or worked at CPS trying to work out how to make a prosecution stick, or ordered the painting of the cars and the flags and the dancing at Pride. This goes right to the very top. The police have been effectively politically captured and the government have a huge, fucking mess to sort out. And I have no sympathy because we were writing to them and shouting about this from almost a decade ago. They've let this happen.
Labour et al would have let it happen a lot faster and helped it on its way with enthusiasm.