Pointer events are not used by the RichTooltips currently.
Removing the close button from the control. Instead, if you want a close button, simply add one as a child of your <aside> or tooltip content. This was specific to Vistaprint as-is and is now unused so unnecessary.
Rely on the closeEverything custom event rather than an array of tooltips.
Use hoverDelay on the tooltips, when hovering is enabled. This is a soft dependency. Prevents the tooltip from just showing up the instant you hover over the context and acts more like a tooltip.