However, in function components there really isn't much need for this pattern since you can just use JS default arguments

Lets not extend the framework with yet another syntax

I'm just pushing on the "is this really a good idea" front

There is no use learning the word for “aardvark” in Swahili if you are never likely to use it. Think of words you use all the time and get familiar with them first.[2] X Research source For example, if you’re an exchange student in Russia, you might need to introduce yourself, ask for directions, and order food. While you might need to know the Swahili word for “aardvark” someday, you can learn it at a later date when the time comes.