Why does `addEventListener` attach to not `node` but `window`?

[studioTeaTwo]

I am going to use it in the case of multiple nodes and the repetition of node.append/node.remove. This can cause problems because removeEventListener can not properly find the corresponding Listeners, leaving Listeners referencing the removed Node.

Current core code is:

    const listen = addEventListener;

    listen('pointerdown', drag_start, false);
    listen('pointerup', drag_end, false);
    listen('pointermove', drag, false);

I think it's better:

    const listen = node.addEventListener;

    listen('pointerdown', drag_start, false);
    listen('pointerup', drag_end, false);
    listen('pointermove', drag, false);