This has three benefits: 1) they may give you additional information what exactly they are doing 2) they get information that their customers find it suspicious and may clarify it for everyone and 3) they may actually add an option to opt out
They're not going to provide you with more information, because that would limit their ability to do something in the future (especially since the person writing the response isn't a product manager or engineer and doesn't know anything about it anyway).
It's worth a shot, if you don't mind the time to write a quick message; I'm just skeptical that anyone would actually pass the message up the chain that their legal boilerplate noone ever reads is vaguely unsettling.
write to their privacy officer, contact details can be found here: red.com/legal
The goal is to talk to RED legal and that won't happen if you shoot them a quick email.