not specifically no, but a decentralized organization does depend more on adoption and should by definition rely more on the community it supports to develop and evolve it to where it needs to be. I think it is normal for people to contribute as much as they can to something and move on to the next and allow for others to add their touch and that is how the platforms evolve with the needs of their users or they die. eventually all developers will leave their projects and so it is important to assess at an early stage if the project is dependent on 1 developer or a community and decide what matters more to you. Satoshi left Bitcoin a long time ago...