[Nerfbat => Rotface] QQ wins again

So Wednesday we had this marvelous experience of starting an ICC 10 man and found out: Hey this is really great with Stinky and Precious, the nice trash and, considering it is normal mode, boss fights that at least keep you awake. Now we have Friday and this is already THE DAY AFTER THE FIRST NERF. What am I talking about?

Rotface health has been nerfed for about 15%, from 8.5 mio. to 7.3 mio HP.
Source: http://forums.worldofwarcraft.com/thread.html?topicId=22418863610&sid=1&pageNo=4

Since this is obviously the consequence of (1) QQ on forums and (2) some bad players (read: this does not equal casual) wiping to rotface more than 3 times, I only got a single question to ask:
Why on god's green earth is it OK if hardmode players wait for MONTHS for their content and players that are just plain bad justify a nerf 2 days after release when the instance is NERFED by design in a few weeks anyways?

For those less informed readers:

Q u o t e:
To further help raids, Varian Wrynn and Garrosh Hellscream will begin to provide
assistance by inspiring the armies attacking Icecrown Citadel. This is represented as an additional zone wide spell effect applied to all players that will increase their hit points, damage dealt, and healing done. This effect will also increase in effectiveness over time. Players may opt out of the spell's effect if they so wish.

in before:
- post on your main => would end in "do it in the appropriate gear you moron, 258 is not appriopriate". Well I didn't get the chance to visit the instance with my less equipped alts, sorry.
- 13 EUR excuse combined with having 15 kids, 20 jobs and 25 boats
- Wait for hardmode => learn to read.