Those who got liquidated probably forget to set their stop loss and think that Bitcoin will finally reach its peak that easily without entering into any corrections.
As you trade, you have to be more conservative and lower the risk that you are taking, don’t ever trade without your target price and your cut loss price, this is a trader with a responsible decision making.
Only bitcoin experts can actually keep up with the correction you are talking about. Then another thing you say you saw is just your assessment, and it's not 100% certain that it will actually happen. Even if you say that you have a source link for that, if there is, it will still remain speculation.
Even though I see a correction in the market, I cannot say that this is what will happen; it can happen and it can also not happen. Because the market is so volatile and unpredictable, the same thing happens to the ecosystem we live in for a few years.