Preventing potential footguns prevents a large number of bugs. In fact, preventing a specific kind of footgun is one of the primary reasons that Rust exists.

Fewer footguns means easier to work with code. Easy to work with code means fewer bugs. If having reserved words removes more footguns than it creates than they are a good thing to have - and IMO - they do indeed prevent confusion and footguns.

As long as these footguns can be removed without giving up much in exchange, I say remove all footguns!