Also, even though they may have had read access, not many knew it existed. But it wasn't super hard to find (I stumbled across it basically).
Oh and then there the whole metrics collection debacle, where the controller basically phoned home about the topology of every network that it managed. Even if you opted out. Opting out just meant they fuzzed your ID so any given record couldn't be linked back to PII. Which may or may not be legal, IANAL.
But either way it definitely wasn't clear that opting out meant data was still collected. Super sketchy.