Everywhere. You are most welcome to update the remaining usages in the codebase too. The notion of “standard dialect” has been deprecated since 2020: [RFC] Splitting the Standard dialect.
It is not common, it is outdated and used by other outdated things or things with no maintainer that has enough time to update them.
If I had had a different name in mind, I would have suggested it already. --raise-wasm would be perfectly reasonable for me.