Thank you for your question. Your arguments sound reasonable. We will make the improvements in the version 2.317 ETA Jun06.
I am glad to inform you that the minor release 2.317 is available for download now. Starting from this version, when hovering over a text with ellipses in charts the full name is shown in a tooltip. Also, when the axis title is long and is displayed not in full in charts, the full text is shown on hover. The issue with too dense labels on the axis in charts was fixed as well. You are welcome to update the component.