While this is true... it is still possible for someone working with the developers to see that a particular player has been reported by multiple people and go have a look-see at the players logs and set something up to track the code when they are playing online. If they do that, the evidence is going to be there and a ban can be made.
And the Hawken portion of RLD is like 3 CSM people, a handful of devs focused on multiple console launches and patch approvals, and probably an HR/payroll person. They do not have the time to setup queries for individual players per match. Which is basically all they can do outside of the built-in detection of speed hacks. Ashfire confirmed previously that no per-match accuracy stats or similar are available, they're all fed into the same collective number, so RLD would need to go out of their way even for that. The servers do not report until the match is finished, either. So if a player fires at the ground for 5 minutes and then activates an aimbot, they might finish the game with 5% accuracy.
There is no built-in mechanism that reports suspect viewport rotation speed to RLD. There's very little for them to check that isn't on herokuapp.
This is why video is required. RLD has nothing else to act on with confidence, aside from the most blatant offenders with 95% lifetime accuracy.
Join me in praying for some robust anticheat.