Sure but wouldn’t it also make sense to implement basic, standard features that every other game engine has?
I don’t mean this in a rude way and I really don’t want to question anybody’s work but frankly, I would argue that the amount of effort and resources that exposing a property that lets you render one image instead of another is incomparable to a complex geometrical feature like spline shapes.
There are also numerous feature requests that talk about wanting more control of the cursor, all of which talk about use cases, and there are a few on this thread as well. More control of the cursor is something that people have been asking for, for years upon years. Some dating back to 2014, nearly a decade. Allowing us to have control of the cursor is certainly not a waste of resources.
I mean, here are a few from a simple search.
GuiButton.CursorIcon
Mouse.Color3 and Mouse.Size Properties
Give more freedom with changing the mouse icon
Respect Mouse.Icon Over GuiButtons
UserInputService.MouseHoverIcon
Button/Image Button Mouse Hover