My experience generally with front-line staff making people follow policies is that they have no idea why the policy exists. I expect to have to go up one or two levels in the hierarchy before I find somebody who can talk sensibly. So I could understand him not bothering.
Also, he was clearly startled the first time, and then mad the second time. The blog post may have only occurred to him later.
FYI, I visited on a multi-day pass (4 days this last week). I didn't rush home to post, in fact, I did it on my last night after packing for home so I wouldn't lose the motivation and things were still fresh in my mind.
Also, the front line staff was pretty clueless (IMO). I was told it's for our 'guest's convenience'. However, I didn't really engage in a deep discussion with them because my family was waiting to have the fun I promised.
Also, he was clearly startled the first time, and then mad the second time. The blog post may have only occurred to him later.