We will see such crashes in bitcoin because bitcoin appreciated so much in so little time so it would be healthy to see some correction. Also, there will be traders would be love to lock in some profits. It's totally normal in crypto universe.
Its normal and healthy to have some correction and I think a lot have expected for there to be a correction since the price got really high last money in just a very short period of time. Unfortunately, some people don't know about this and become victims of panic selling. Some like the price to be always rising and get scared once the price drops even for just a little. Seasoned traders know that the price has to go down every once in a while otherwise this would not be healthy.