It does sound quite similar. But in addition to the crucial difference of opt-in vs. opt-out there's also an interesting contrast in how it's framed.
Debian talks about what you, the user, can do: help out, participate and vote. If you choose to do so.
The Go team talks about what the developers and their software will do to the user's machine, but the user is completely passive in their description. This is also reflected in the term "telemetry" itself: the software is not a tool in the user's hands but rather a remote-controlled probe in the user's habitat that pokes at the user to elicit interesting responses.
Debian talks about what you, the user, can do: help out, participate and vote. If you choose to do so.
The Go team talks about what the developers and their software will do to the user's machine, but the user is completely passive in their description. This is also reflected in the term "telemetry" itself: the software is not a tool in the user's hands but rather a remote-controlled probe in the user's habitat that pokes at the user to elicit interesting responses.