Ambiguous: they're aware of why who is doing it? I opt out of telemetry because I don't know why they're doing it - the data collectors. I mean, I know why they say they're doing it, but I don't know if it's true.
I also don't want my computing resources and network bandwidth used to further a goal that I might not support. Even if the only reason for collecting data really is to "improve the product", perhaps that'll result in them making the product dependent on systemd, which from my POV would be an adverse outcome.