GANTT Chart

Why is it that Agilists are so anti-GANTT? It is and never was a tool for a specific methodology or framework so I'm confused as to why it's not used more. Instead, they are using horrible tools to show dependencies etc. Is it just ignorance? Just FYI, if I say it's not used I might be wrong because I often see POs creating GANTTs in PowerPoint for their roadmaps but I do not think they know it. Whether you want to acknowledge it or not, an Epic is a project. Why not use a proper tool that can create proper GANTT chart that shows proper dependencies, critical path and the impact of delays?