So, is this a good thing? I don't agree with you, the drama shouldn't happen, if this keeps happening, they will continue to create drama in the future to try dump Bitcoin again. If they are late to buy, they have to be fair to buy Bitcoin at a high price, don't dump it to make panic the weak hand.
What you call "drama" is necessary, essentially the volatility in bitcoin is necessary to prevent market bubbles from occurring. This is almost needed by all types of bitcoin users (speculators, adopters, holders, etc.). After all it's useful for weeding out a few weak hands to mitigate the effect of subsequent FUD, though it doesn't prevent them from coming back on various occasions a market trend.