WP:AGF only goes so far, especially when there is the appearance of an agenda (supporting one's opinion is one thing; mentioning the victim most every time is another). As to the content of the SeaWorld article itself, it needs work ... no question. Clean out the marketing spin and focus on SeaWorld's history prior to its acquisition by Anheuser-Busch (at which point it became part of Busch Entertainment Corporation, which is now SeaWorld Parks & Entertainment). As to "favorable vs. unfavorable," if that's truly how I felt, such incidents articles wouldn't exist. I've gone through with SpikeJones and other editors to keep everything consistent, first getting involved with them after the monorail accident in July 2009, when this exact same issue came up, and again consensus was that leaving out the victim's name didn't damage the article, nor did it add any significant value to it (at which point, tie goes to "leave it out"). After that, it was the rash of lewd-behavior incidents at Central Florida water parks ... again, if I was trying to protect the parks, I wouldn't have allowed the information in, as if it were completely up to me, anyway. Heck, I added a number of them into their respective articles, and I fleshed out others with more details and more source information to back it all up! (In the interest of full disclosure, the victims in those incidents were generally minors, which (a) wouldn't have been named by the news and (b) if some unscrupulous person had gotten a hold of the names, I have no doubt the names would be expunged immediately and nobody who really had the project's best interests at heart would put up a fight. In not so many words, while also incidents, they did have special conditions that don't make them good examples in this dispute.)

These incidents articles are based purely on what's in the local newspapers, with no candy-coating, no PR spin ... save one thing, which has been followed with almost all the incident/accident articles I've reviewed, both theme-park and non-theme-park. Unless they were already notable, victims' names aren't included, because they aren't necessary to, as you put it, tell the story. There are, of course, exceptions (such as the victims of the Titanic), but the theme park incident articles are consistent.

Lastly, as to your assertion of WP:COI, I'd welcome any proof you'd care to provide in regards to edits being made currently. Previous COI edits, such as those that inspired the newspaper article you cited, should indeed be expunged and replaced by neutral point of view information. But that's an issue for another day.