Maybe it's the fact that someone is declaring that Bungie or 343 released a map without testing it. Which is a truckload of bullshit, and ignores all the other elements of maps that didn't work out and Bungie removed them with the benefit of hindsight and reams of matchmaking telemetry and used the lessons in their next games as well. But nobody really calls them out or notices them because it's not the current game and they just want to get a reaction.
The issue is usually that they didn't test it with assholes in mind. And to be fair they can't do that. They can't anticipate every single griefing factor, time spent, glitch found, and hiding spot on every single map. There just isn't enough time or manpower in any game studio to catch everything.
The low gravity space area above Zealot, however, was abused from absolute day 1 of the game launch. How they missed that it would be a campers dream (and nearly, if not entirely impossible to break), has to boil down to oversight and/or not truly understanding the demographic of people purchasing your product. But they also shoehorned Sword Base into mutliplayer so...
The test of a studio (in this case 343) will be in how they handle such issues once they are inevitably found. If a map carries on for a few weeks with an issue that's not a huge deal. If it carries on for months (or forever as in the Sanctuary clone) then customers have the right to complain and be skeptical going forward.
I think 343 will have learned much from the latter days of watching Reach (their maps, for starters, seem much better at launch than the Reach maps), but that can only be decided when we actually get to play the game. Until then we can bitch, argue, and be skeptical because given some of the other changes (Infinity Slayer, random ordnance, instant spawn, kill cams, jetpack returning, can't pickup grenades, etc. etc. etc.) it might be the most pragmatic outlook to approach the game with a healthy dose of skepticism.