Exam ISO-21502-Lead-Project-Manager Topic 1 Question 21 Discussion

Scenario:
Headquartered in Geneva, Switzerland, DND is one of the largest worldwide automakers. It first gained global recognition after introducing a sports car, which quickly became highly demanded by sports car lovers around the world. Alec Law, the CEO of DND, and his management team recently decided to embark on a new project, i.e., the production of alternative fuel cars, which would use an alternative fuel source instead of traditional petroleum fuels, as the other cars of the company do, in order to promote sustainable and low- carbon transportation. For the implementation of this project, the company decided to follow the guidelines of ISO 21502 on project management.
During the development of the project governance framework, the company took into account several factors, including, among others, the legal context of stakeholders. In the project governance, the company also included oversights on the management frameworks and the project life cycle. In order to determine the project life cycle, the external environment was considered, including information on studies that related to similar projects. In addition, the company decided to separate this project governance from its overall governance.
Moreover, the company developed a project organization, where the roles, responsibilities, and authorities in the project were defined. In addition, the responsibilities of the project office and project assurance, among others, were defined. The project organization also included a customer representative. Once the project organization was developed and approved by the project board, it was communicated only to the project team.
As the project was entering its design stage, the project board made a change in the structure of the project organization since one of the work package leaders had resigned from the project in order to be involved in another project of the company.
Question:
According to scenario 1, the project board made a change in the project organization structure after the project entered the design stage. Is this acceptable?