You are correct, the crash was not because of Covid-19, but it was affected by it (indirectly). If you check the media during that time you can clearly see that there was a huge campaign going on trying to convince everyone that "bitcoin is following other markets" whereas bitcoin has NEVER EVER followed any other market in its entire history!!! Soon after as bitcoin recovered while other markets continued struggling for months the "manipulation campaign" in media stopped too.

The crash wasn't even new! We had the same exact thing in 2015. Basically each time at the end of the cycle when the bear market is ending and is being replaced by the "reversal" and the bull market there is a similar attempt to crash the market for one last time. They also use some excuse for it too. During last cycle they used "bitcoin is dead" excuse and crashed the market from almost $300 to $150 which is the same almost 50% crash as we had when price was pulled down from $6000 to $3000 as the last attempt before the reversal.