All that totally ignores what would have happened without the lockdown measures, in my area 7 or 8 ICU beds were occupied out of 11 in hospitals, what would have happened if we had left it until 15 or 20 needed those beds just for covid 19, that would have been disastrous.
Without being too political about it, we were not set up for a full blown herd immunity approach in Scotland and our method of funding pretty much tied Sturgeon' hands to a fair degree.