That should be expected as it is a natural principle. Most projects are dead because of poor management by the team members because they lack the expertise in crypto and failed to seek for counsel from experts. Also, projects with no backing product or tangible ideology behind is likely to go down the drain as it will lose the interest of potential investors.
That could be one reason for the death of a project. In addition, some of their projects have not been fully prepared before the project was launched. As a result, some bad things that might happen after the project appeared they were unable to solve it. For example, some investors will not want to participate in cheap and unclear projects. Now many projects are scamming even their strategies are good and their projects are clear. Things like this make prospective investors must be careful in choosing projects for investment.