When OnAxisLabelClick is set, the ChartCategoryAxisLabels do not get 'cursor: pointer' which is confusing for users because it makes it appear as if the axis labels are not clickable when they actually are.
===ADMIN EDIT===
In the meantime add the cursor: pointer CSS style to the labels. Here is a REPL example:
https://blazorrepl.telerik.com/cyvEYNbP27vsCSLG28