If my memory serves me correctly, then I am sure that the bear run was already on before the Do Kwon and SBF sagas. Though they further worsen the already bad situation, kinda adding salt to injuries.
But, i don't think the bear run where caused by these two alone, we are all part and parcel of it.
It doesn't require memory, you can just take a look at the chart you quoted.
A bear market is normal behavior in the crypto market, and it's not anyone's fault. The downward trend of the market in a bear market is also a normal phenomenon, and it is impossible to really predict and control what will happen. We should learn from these failures and control greed to avoid unnecessary losses.
Of course cycles are normal, but they always have trigger points to launch them.
And this wasn't about prediction, this is the aftermath and fundamentals, not technical analysis; which ironically is be basis for the claim that bear market is normal like you said and possible to predict.