That said I am slightly fearful of the path being trodden here so how long this remains true is sadly a mystery rather than impossible as it should be.
It's really not a mystery at all. There isn't even an appetite by police leaders to equip every officer with a Taser at the moment, routine arming simply couldn't happen any time soon.
In any case, Britain is one of only a handful of countries that don't have routinely armed police, so the frequent comparisons with the US are disingenuous. We'd be more likely to adopt a model similar to New Zealand if a shift towards routine arming was deemed necessary.