By unprecedented, I really meant the timing i.e. imposing severe restrictions over the Xmas period, but yes, it does have an unwelcome familiarity to it.
The difference between 'Tier 4' and full lockdown is fairly small, but at least there is not (yet) stay at home orders... but unless people abide by the guidance, then another lockdown is all but inevitable.
For once I have some sympathy for Boris Johnson and for Nicola Sturgeon in Scotland, because they are damned if they do and damned if they don't... there are no good options. Hell, there are not even bad and less bad options - there are only terrible options.
They are also struggling with the paradox of trying to impose as few restrictions on as few people as possible, which means a litany of confusing rules, arguments about differences in rules etc., and inevitable (and seemingly constant) changes. In trying to be specific, targeted and measured, they end up with a hot mess and yes, it eventually undermines the basic message. Nationwide lockdown, on the other hand, is simple, 'fair', and clear - but it's a sledgehammer that also comes as tremendous costs.
I seriously don't envy them their jobs right now.