It takes a lot of time for the realization of idea. And now it is a very hard time even for a projects with realised ideas. And for realization of the ideas it is necessary money but cryptocurrency falls. A cryptocurrency holders lost a lot of money.
This is because the project teams do not know how to manage their capital. Having a sufficiently large capital in the cryptocurrency, the fund manager can convert part of the cryptocurrency into ordinary money. For example, for the half or one a year they can reserve a ordinary money in order to continue developing the project. This eliminates the dependence from the "surprises" of market.
This option is perfect to help partially protect themselves from losses when the market falls.