People forget this things all the time because people's brains don't work like Spock's brain. There are plenty of junior programmers around that will have to be taught this. It's a footgun. Is it manageable? Sure; I already said that. But that doesn't make it not a footgun. Anyone who says anything else is not serious.
Check this - if it's something important.. don't forget it and implement something called "function" that would pass the third parameter by default?
Anyone who is not capable of taking care of what you called footgun in a way where they automate - that person is not serious.
If there's a pretty huge problem - manage it. That's your job as programmer. If you're lazy, sloppy and prefer whining online over being proud of your work - there's no programming language that will take care of that for you.
