If we are about to based from the history, we can see patterns and significance. But as for trading, the market is basing to the demand and not actually from the history. Probably the history is also being the basis of other traders and investors to buy if they see the significance of the present time and will start to compare it from the past. Do you have the source how big the drop for trading activities with the beginning of the pandemic? IIRC, the market dropped but trading didn't.
^ Definitely right, trading is not an easy job, it requires skills and knowledge to perform the technical analysis upon predicting the market. But that does not give an accurate result, there are various factors bitcoin price varies, it will either on news or FOMO. So, that's not just easy as that.
Nevertheless, as far as I know, there are massive losses from newcomers who join in trading, they think that trading is a very easy way of earning money during the pandemic, but the fact that is not easy as that. During pandemic and lockdown, people start looking on the internet that could something they will earn money, but instead, it is opposite of what they expected.