The real good ICOs should not be affected by any short-term dumps. Those will bounce back stronger over time. Carefully planned lockup periods can mitigate some of the dumping.
We have a lot of examples about good ico which not get any dump but they were getting a huge increase after listed on the exchange site. We must see that about where that will be going. Basically a good ico means a big demand to protect it from the dump
This is not happening with each and every project, there are good projects that progress good when it's been launched for the usage. Once after getting listed, due to the lack of trade support there won't be expected trading volume on the exchange. The big demand of projects were seen when there is at least a mvp. Good ico's truly recover even when there is a dump in between.