Perhaps this situation may happen again when prices are high. But still I think that such a scale will not be.
Market events of this kind are repeated at different intervals. This has been take place on the stock market since the beginning of the 20th century. Thus, the likelihood of a large-scale pump in the crypto market is very high.
Hope the situation that was in 2017 will repeat. Good market conditions help to develop crypto projects a lot. But it was a lot of scum too.