Make the Arcade geometry types and subtypes mutable?

[Bud]

Arcade geometry types and subtypes (point, polyline, etc.) are immutable. It’s not possible to change them after they’re created. 

As a novice, I’m wondering:

Is there any chance those types could be enhanced so that they’re mutable? If so, that would make writing expressions for calculation attribute rules easier.
(edited)

[jcarlson]

I suppose it depends on where you're hoping to use this functionality. The various Arcade profiles are quite different from one another in their scope, but in something like a Data Expression, there's no reason you can't adjust geometry all you like. With map symbology, on the other hand, it's less feasible.