I tried to continue posting in the old thread but overzealous mods locked it.
Are NA players supposed to be lumped in with Oceanic players in dungeon finder and dumped on to Oceanic instance servers?
It happened to me again last night. 4 players from NA realms, 1 player from Oceanic realm (Barthilas) and dropped into an Oceanic instance server (103.x.x.x).
The short answer is yes. The same thing happens to oceanic player. There are a lot of reasons this can happen. But basically its functioning as intended.
Same happening to me. I usually play on Azralon server, and its clearly when there is someone from oceanic servers on party, the latency on casting spells or abilities become unbearable, specially when playing as healer, latency rump up from 130ms world to 450/550ms.