that's what you expect, but the market is not as easy as you think, there is no certainty that bitcoin profit will move to the altcoin market, and that makes the altcoin market condition still uncertain. what they do by selling their altcoins might be the best choice to secure their investment _{(or the worst).}

but I agree that panic selling is a mistake. one must be able to understand how risky their investment is and they must have a risk tolerance for their investment, so they don't sell at the wrong point.