I understand this, but you are still limiting loss by selling and rebuying. In the unprecedented situation that we currently find ourselves in, due to the virus, it was pretty obvious that stock markets would fall.
Last Monday the NYSE automatically stopped trading due to overall market cap falls of over 6%. This should have alerted most professionals equity investors that the market was turning very bearish, institutional investor houses were selling or being instructed to sell. These investors who sold at the start of the bear run can now rebuy the same amount of stock if they wish and still have at least 30% of the overall original cashed out sum held in cash. I agree no one has a crystal ball, but common sense would have dictated that a virus that interferes with free movement of people and goods would have a detrimental impact on stocks, particularly stocks that rely on such movements.