While Bermuda not being part of the Caribbean might be true…it’s really not a valid point in this circumstance. It was an apparent dev assumption that this level of precision was desired even if it wasn’t requested or its absence as a requirement was a mistake. When it was reported as a bug, that should have prompted the developer to clarify with the PM the OG requirement so they were both on the same page. He didn’t, he assumed she was wrong…apparently twice.
The PM probably understood that to their lay users the terms “Bermuda”, “Caribbean”, and “Islands” all have a degree of marketing relevance to each other (There is a reason why you might dumb down search results for something like that). Judging by what was information given in the story, apparently dumbed down search results was known and required in the past.
Not sure there is any “right” way to gently coach an employee that disregarded proper protocol and requirements, lied about it, blamed a colleague, and initially refused to accept responsibility when it was brought to their attention. That would be damn frustrating. I know HN loves to blame the manager, but this is one of those instances where it seems every portion of the problem and its escalation appears to lie solely at the feet of the developer. It least in my opinion.