Final answer:
Gantt charts do have the advantage of showing which project tasks can be delayed without extending the overall project timeline, particularly tasks that are not on the critical path.
Step-by-step explanation:
One of the advantages of Gantt charts in project management is indeed their ability to identify which activities, also known as tasks, can be delayed without affecting the overall project timeline. This feature arises from their visualization of task durations and dependencies.
Tasks that do not have immediate successors or are not on the critical path can often be delayed without impacting the project's completion date. This is particularly important in scenarios where resources need to be reallocated to focus on more urgent tasks or where unanticipated delays occur.
However, Gantt charts also highlight the fact that certain deadlines are critical to the success of a project, as missing them can result in significant repercussions, such as revenue loss or failure to capture market share, as seen in the scenario of designing a new video game controller.