but the problem is.... is priest.... druids.... and shams.... were the same way, shamans spammed chain heal, priests spammed flash heal CoH penance and bubble, and druids spammed their hots. To get their mana back... priests... shadowfiend about 40% of their mana back and hymn of hope about 10%... shamans.... the totem... druids.... innervate.... NOONE oomed during that expansion at all.
How do you spam flash heal, CoH, Penance, and bubble? CoH and Penance are different specs, holy priests only sometimes used FH and almost never used bubble, and CoH isn't spammable.
For disc, bubblebotting was only appropriate for certain fights - it was stupid for any fight without an aura or Infest mechanic (even on LK, the heaviest bubblebotting fight, there were phases where it wasn't appropriate). In that sense, while it was a lame playstyle, it doesn't come close to being comparable to the Beacon/Holy Light spam that pallies were stuck with on every. single. fight. Disc priests on non-aura fights used bubble, Penance, PoM, PoH, and FH, as well as appropriate CDs. That's at least as much as they do now - but in Wrath disc the distribution was much more even.
There was only one constant in holy priest play in Wrath, and that was PoM on CD. Everything else changed in response to the specifics of the fight; some aura fights were heavy on Renew and CoH, others were better suited to heavy PoH use, spiky damage fights were heavy on the FH/PoM/Renew trio, and then there were a few fights (e.g. Firefighter) where Holy Nova was awesome, and others (Valithria dragonhealing) where GHeal was the best choice. Most fights changed from one healing style to another in the middle. There was always spell and target choice involved, much of which required positional and fight/incoming damage awareness - who's the best target to get PoM to bounce multiple times? Who's in a group of hurt people who could benefit from CoH? Who can I target in the ranged dps group to get PoH to reach everyone? Which group should I PoH first - which is least likely to catch CH and WG in time? Can I hit my group with Holy Nova and use my CoH cooldown for the melees?
It was an incredibly dynamic class. And it was one that could be played (in most fights) without ever having to stand still for more than a few seconds at a time. Now it's...not. It's slow and tedious.