Big "one study says" energy in most of the points here. I also think it would be more honest to write the percentage of people who chose neither of the chocolates in the same size as the other numbers.
That sounds great in theory, but what happens if your dev/ops ratio is something like 15/1? How do you put an ops person in every team? I think it's the right answer but it seems impossible to put in practice.
Consent is one of the legal bases for processing personally identifiable information[1]. There are five more, among which "legitimate interest" can cover a variety of cases.
Having just finished "On the move", Oliver Sacks' autobiography.