Aye, however look at it from the other side also. It can be construed as powerplaying to force your diplomatic status on other factions, and then we are back at square one. What I am saying is that I would very much like to also see why any faction would place the Phantoms as friendly or allied on their diplomacy sheets. If there is RP to back it up (I'm not sure about Outcasts and Phantoms in this case) then ok, but in the case of for example Corsairs who are known to (within RP) flaunt their pride and indiscriminately attack those they don't know... well, some RP would be in order I'd say. Doesn't need to be an official diplomatic statement. Can be a shady meeting with the Council of Elders or something, placed in a story somewhere.
As to why hasn't the diplomacy changed for most factions: Same reason why I only silently moved the Phantoms to unfriendly a couple months ago, after reading their revised status. Most of those factions retain their diplomacies from 4.83, when the Phantoms as an admin approved pvp force of doom were "fine". Obviously that changed since then, but there is still another thing. There is no action -> reaction to base off of, nigh none ingame data, and nearly no Phantom presence ingame to speak of. Most people simply don't know what to make of it, unless they specifically look for info in the RP forums. I am not sure if that is explicitly sought after or just a byproduct of the Phantoms relative inactivity, but yeah... IMO it's no excuse to let it lie because people don't remember it exists.