People care about an admin not just being in the top 10 but consistently being #1 because it sets a bad precedent. No one is saying he shouldn't be able to partake, of course, but when there are unanswered tickets he could be helping with it just looks bad. Also the fact that he was clearly either cheating by using a bot or not sleeping to get there, which again just sets a bad example.
Instead of removing the leaderboard, which is not what people were complaining about mostly, they could have made it so that he didn't show up in the ranking or he could have a player account so people wouldn't know it was him.
I agree it seems like they're treating us like children - they see we're complaining about something so rather than implement an actual fix that would take *effort* they take the easy way out and hope that will appease us and it's not a great look.