Nothing keeping you from using the same approach(or even some of the really nice mapping functions), it just lets you get rid of the boilerplate that you see there when you want to.
I don't think it's fair to say that the option Rust gives you is more complex. It's a syntactic convenience which reduces the chance of a someone typing a mistake in the longer form.
Regardless of how simple the language, there is always more than one way to do things. Rust is just giving you the choice to eliminate a lot of boilerplate if you so desire. In reality most Go users will opt to use the style mentioned above instead of something more verbose/complex and most Rust users will likely opt for the new ? operator.
The go way is a little more verbose/uglier but we are both going to do it in the same way as will the 30 other developers working on the project.