Forget Siri, iCloud and whatever has you excited about macOS Sierra. With this version of macOS, Apple has corrected the typos I found in Disk Utility.
The Erase Disk sheet used to read:
Erasing “DISK NAME” will destroy of all the data stored on it. Enter a name, choose a format.
The sheet now says:
Erasing “DISK NAME” will delete all data stored on it, and cannot be undone. Provide a name and format, and click Erase to proceed.
I think this language is a lot more clear. Well done, Disk Utility team.