You don't need to break down something for me to attempt to validate your point, i perfectly understood your position the first time. My opinion stands nonetheless for the following reasons:
Griefing is completely irrelevant as an argument since you know exactly what you are signing up for when you choose a PvP server (nothing that could provoke griefing would take place in a non-PvP server). In case you misclicked, or didn't know...no problems. The game itself pops up a warning sign, to make sure you do. So, no excuses there.
Yes, i am a person who enjoys PvP. That is why i chose a PvP server. The sole difference between a PvE and PvP server is the ability to do OWPvP without mutual consent (turning on the PvP flag). Those that "do not" enjoy PvP and enjoy it "in clearly defined areas such as WZ's" have the option to play on a PvE server and not a single part of their experience is diminshed. I on the other hand, who enjoy OWPvP, and signed up for (by choosing a PvP server) should have the chance to see that choice manifest.
This is not an overall discussion of we vs you (PvP vs PvE). There are servers for that, where OWPvP won't bother you without consent so no problems on griefing or anything of that kind. But even there, when you choose to PvP you should do this, on a PvP system that is thought off, and polished as the rest of the game.
TL;DR The point of this discussion is how unpolished the PvP is, not wether PvP as a feature provokes griefing or not.
PS: when i was referring to a strict set of features, i wasn't pointing at an absolute set that needs to be met everywhere. More that the set of features that is lacking is small rather than huge - but its lacking is obvious.