Ok, I am starting to get a "stalker wants to pick a fight" kind of vibe from you. First - I didn't bring up Ra-Den. Vow brought up Ra-Den in
this post as an example of WM being used as it was intended and its overheals not being as high as other fights because during phase 2 people are constantly below 70% HP. I just used this example to point out that his logs show his overhealing with WM was still between 50-70% for that fight.
As far as holy radiance and daybreak - when those spells are used, they also put a bubble on the target, making them worth casting because they essentially double dip *edit* - Forgot to mention, both of these spells (Holy Radiance and Holy Shock) are also targetable unlike the current form of WM, and actually give you resources back in the form of holy power - *edit*. WM when it heals, thats all it does, heal. There is no other benefit from using WM except maybe to refresh your harmony buff. Even Prayer of Healing (another non-smart heal that heals anything in the group indiscriminately) adds Echo of Light or Divine Aegis. The reason I compared WM to tranq or rejuvenation is because there really isn't anything else to compare it too. There are no other heals like it. The only thing close is Lights Hammer - and that has the same issue of overheals. What sets Lights Hammer apart from WM is the fact that Lights Hammer now benefits from the paladins mastery (Illuminated Healing) - so again, double dipping.
As far as my "argument" - I have no argument. My "argument" is merely an assumption as to the reasoning behind the nerf to WM's healing. The reason I made this assumption was the fact that every time I personally have used Wild Mushroom, the majority of the heals (while impressive to see the large green numbers flying around) were way stronger then they needed to be. Hell I had one crit the other day for almost 1.5 million (you can see these numbers
here). On the same bloom I saw a ton of 400-900k hits. No one in my raid has even half that (1.5 million) without cooldowns. Yeah its nice to see a ton of large numbers, but when the majority of it goes to waste, what is the point? I understand you raid 25 man and I raid 10, so the numbers I see are quite a bit different than what you see. However this does not invalidate my point that a weaker heal means less overhealing. Instead of a 1.5 million crit, I will see a 500k hit, and I am fine with that (most of the people in my raid have about 500k). But as I said in my last reply, I understand that 25 man is different than 10 man, so I am all for giving 25 man resto druids stronger versions of the mushrooms as the heal is spread a lot further in a 25 man instance, inherently making the heal weaker on fights where the raid is clumped together (300k/25 < 300k/10)
Just to give you an example you can relate too, this is the breakdown on how your mushrooms healed in your most recent Ra-Den kill, I will let you work out the numbers on how effective WM was in this instance (my rough estimation, a little less then half of your WM detonations were actually useful):
440 Pet hits
511 Player hits
288 of those 511 hits were overheals
of which
272 did no healing at all.
Only
16 of the overheals did any healing at all.