That is something completely different, any time a player is forced to resurrect at the spirit healer while doing quests or anything usual, we will take a look and adjust graveyards or the resurrection functionality if we verify that it happens when players aren’t purposely going out of their way to get into weird inaccessible paths.
So if there’s a specific place, like around the Cloud Serpent dailies area where you might be forced to resurrect at a spirit healer, that can be considered a bug and devs usually fix those by either moving the graveyards, creating new ones or flag them to auto-res players who release in those places, we prefer to do that as we’re still hesitant about adding ghost flying to Pandaria.
I don't get what the hesistation is to not allow ghost flying in so many areas, including pandaria. Not having it tends to mess things up.
There was this one quest I was doing for one of the Tillers NPCS (it wasn't a daily, it was one of the friends quests) where I had to fly up onto the cliffs to the north and deal with some of those hoppy virmen-type things. One of them has a knockback I was unaware of at the time, and it knocked me off, and I fell and died on some sort of rock outcrop. When I did the corpserun, my ghost was on the ground, and I was THIS close to being unable to rez at the corpse: || . If I'd had a slightly different landing spot I wouldn't have been able to get close enough. It took a while to find a place that could just barely reach it for the rez.
Another time, check this out it wasn't even Pandaria - I was in Mount Hyjal on one of my DKs (max level was 85 at the time, he might have been like 79 or something). I had some kind of death near the edge of Mount Hyjal. My ghost appeared at a spirit healer in a different zone - I can't remember if it was Ashenvale or Felwood. And there was no spirit flying there - what a mess that was.
Another time I died at the edge of Wintergrasp and my ghost appeared in Sholozar Basin. It didn't let me fly, I couldn't get the corpse (this was when I was using my USA wow character, not one of my EU ones, for the sake of accuracy).
This other time while I was leveling around the beginning of Cataclysm, pretty sure this was in Ashenvale, there were some mountains or something in between the graveyard location and my corpse and I couldn't find a way to get to the corpse. It's like I ran and ran and it was as though, nowhere I could go would lead to there. It was a little crazy.
It's rare that I take a rez off of a spirit healer but those times that it happened, it was almost always because of something like this - being unable to get to my corpse + ghost flying would have fixed it.
I noticed that the Resurrection Sickness debuff doesn't de-increment its timer when you log out. Best of my memory, I logged with it in Stormwind once and then when I came back on later, I still had it. I can see where that has a value in world pvp because you could have like, people just logging out and keep rapidly re-logging various alts within a 10 minute cycle. But i'm not on a pvp server and don't do world pvp. So to me it's eyesroll when I get this thing, I just have to tab out a while or do whatever for 10 mins. And it's not like I did something taht seems that it deserves some time-out penalty, it's just normal stuff but with a problem to where the corpse isn't accessible.