I totally agree with you. I saw some Gantt Charts that made the project more complicated rather than breaking down the process and mapping it in the right and simple way. However, Gantt Charts may not be an ideal option for some complex projects that includes many details associated with a big number of tasks. Another case that Gantt chart won’t help as much as it could be in managing a project is when the processes, tasks and time need to be continually updated and refreshed.
Other factors to consider when designing a Gantt Chart is to make sure that it simplify and manage the project process in a clear and realistic timeline, it demonstrates the work clearly with a high level of visibility which makes it easier for the group member or any other employer to read it and understand it quickly. It is also essential to use a professional software application to build the chart (Ex. Mavenlink, Wrike, Smartsheet, AceProject).
Personally, I never worked in the industry yet, but I used Gantt charts in many projects since I was an undergrad, and I find it very important in planning a project and a powerful method when it is designed in the right and simple way.

Due to the projectmanager website:
Gantt Chart should include:

“- The start date of the project
– What the project tasks are
– Who is working on each task
– When tasks start and finish
– How long each task will take
– How tasks group together, overlap and link with each other
– The finish date of the project.”