For starters, it says so right on the tin.

> Sentry has many other types of telemetry and we’ve existed long before OTel.

That's fine. Just because a vendor is missing features it doesn't mean it's bad. It just scratches a specific itch a specific way. That's ok.

> Who are these all knowing humans who say this is what telemetry is?

For starters, anyone who has any first-hand experience with telemetry, either as users or as implementers.

I seriously don't know what point you are trying to make.