It is healthy and a good thing to have the price of cryptocurrencies crash, why? Because it is a buying opportunity for new players to get a chance to profit. The market is quite small relatively and it is news-driven so when we get aa bad news or even a news that isn't that bad but interpreted by some as bad, then FUDding comes and everyone sells.
When big players sells then it creates a shockwave in the market, graphs would show a big difference in the prices so it is seen by a lot of traders including the weak hands which are a target of a seasoned big veteran trader and a domino effect of selling is created until everyone is trying to out bid everyone on selling their cryptos as fast as they could in the fear of it coming in lower value soon.
I think that this trend will continue with all that wild price swings in Bitcoin price especially when it becomes more scarce and we just have a little btc to play around with plus as the users also would increase then Bitcoin will become more wanted and its value to further go beyond everyone's expectations with a surprise.
It will be good for all in the end. Just learn to identify when to buy in and sell out as well as learning how not to listen to FUD because it is just a conspiracy to press the prices down because the big players already had sold so they can buy again and begin again the cycle of life in the crypto world.