Pot Spamming is a technique used to compensate for inadequate gear in other games, nothing more. In this game it has a cooldown attached to it that makes spamming items counter productive in combat. The only time I even needed pots in this game was right at launch. After that, the buffs in the game associated with pots just don't last long enough to be worth giving them inventory space. Other consumables like food at least last 30 minutes.
The trend I'm seeing is that people are trying to hard to prove that Healers play bad by not DPS'ing, when the evidence appears to be the opposite, Healers of "so much downtime" seems to be because the healer is playing bad on purpose and the tank suffers for it from all the overhealing and enmity generation coming from the healer's inability to pick the right healing spell and instead spamming Medica II or the highest single-target heal as the only heal. You aren't speeding up the run any by DPS'ing as a healer, so why risk wiping the party? It's counter-productive.
The only time I'm hitting a near-OOM point in any duty is when I have to carry a bad or poorly equipped tank, or constantly having to revive DPS taking dirt naps who aren't trying to avoid AOE's. The one I have on video is where a tank broke all their gear by the time it got to Midgardsormr in Keeper of the Lake and had to finish on DPS gear. Or maybe that time where I had to use the Summoner's pet as the tank for one boss because the tank dc'd. All of this is adapting to the situation even if it takes longer instead of "abandoning" or "kicking" because the situation isn't within the parameters you want.
This is the thing that people on the forum refuse to acknowledge, that no players are perfect. If Cleric Stance changes to be useless, and it becomes easier to fire off Aero/Stone that still does not make it something they can just throw in a rotation of healing. Disposing of Cleric Stance at best just removes one of the hurdles needed to play single player quests that otherwise the cooldown between switching stances usually ends up with you taking two hits from a mob, and all the accidental "oops still in CS" that no longer gives the "dps healer" an excuse to exclusively DPS and let the other healer carry the party. I don't expect anything to change really, healers will not be punished by not DPS'ing, and will actually be able to use spells like Assize, Aero III and Holy for where the AOE effect is useful, who cares about the DPS value.
I've never seen a legitmate example of where a healer has been "required" to DPS to get through content. At best, the healer's DPS only makes up for a shortcoming by the DPS in the Savage versions of Raids. They (the developers) have made it clear that all of these things can be cleared using the roles required for the raid or duty, and thus making unreasonable demands of healers or tanks to contribute DPS when it's not even required, is again, is asking to be carried. Big deal if a WHM DPS shaves 10 seconds or 2 minutes off a duty, there is no reward for doing so, and you're not going getting any farther ahead in anything by doing so.
So when you use PUG's, and they aren't playing the way you want, find a static that does. Clearly from the uncivil comments by some people in this thread alone, there are enough arrogant "deeps or get kicked" people that they can all form their own statics and not have to worry about people wanting to have fun.