Using the same twisted logic I can say that disc is gimping the raid by sniping heals, but does not provide enough healing power when it really matters and you are 10x better to bring holy, which is stronger there. Your argument, is illogical and unsubstantiated and the only thing it does achieve is make everyone tripple /facepalm. Holy has excellent throughput useful CDs and great mobility. Disc sniping heals and achieving higher HPS does not make an appreciable difference to your raid in the majority of the current tier.
Maleric: Ok fair enough I can see your point, but I dont think the toolkit problem is a very big issue. It's ok for disc to be weak at a particular style of healing, given that it has utility. For me the thorny point is throughput.
Using this formula to calculate breakpoints: crit =(1+0.5*mastery)*(1+mastery)/(1.6*(1.5+mastery)) - 0.5/(1+mastery)
And using the optimal crit/mastery of 18%/38.4%, for my current gear level fully raid buffed, then using my unbuffed int value (the buff won't affect the relationship) as PoH heals for 31152 base.
As disc the formula is base*(1+0.5*mastery)*(1+crit*(1+mastery)), so 31152/2.5*(1+0.5*0.384)*(1+0.18*(1+0.384)) = 18554 HPS per target. The crit part is the absorbs so out of that HPS 20% is absorbs. That means PoH spam with my unbuffed int value does not even hit 100k HPS!!
Using the same values as holy (24% mastery 18% crit) in blue chakra.
base*(1+crit)*(1+mastery)*1.25 --> 31152/2.5*1.18*1.24*1.25 = 22 791 per target and 24% of that is the EoL HoT.
Now consider that CoH is a slightly shorter CD than penance and when glyphed more healing per CD and that glyphed PoM for holy is MUCH stronger due to DI and especially considering that 2set PoM is nearly 2x the HPS of 5stack penance and on top of that that cascade/divine star is larger and that serendipity is a stronger boost than borrowed time and that you still have sanctuary for a stacked raid, while like it or not is an HPS increase and you can see that disc is just too far behind holy on raw throughput.
Seriously though PoM for holy in blue chakra heals nearly as much as PoH does even though the tooltip spazzes out and reports completely the wrong value.
====================================================================================
For me holy just needs 10s CD on chakras, sanctuary buffed, serenity giving a longer buff so you can keep it up all the time, smite chakra also increasing ST healing (gh, fh, bh, renew), divine star, CoH and PoM by 15%. The the spec will be very strong then.
I think a lot of people don't quite realise just how much DPS holy can do right now. Its actually sick. I am destroying 480 geared (but obviously not very skilled) dps specs in heroics.
If the raid dosnt have a disc and you could bring a disc or a holy, you bring a disc. Holy has no place as other healers do what a holy does but better. Look at wogs. Look at how many people are holy. Holy is in the same spot as a Rdruid. You say what you want, but the logs don't lie. If you have a disc why bring a holy also when you could bring a shammy.