Do you think that changes in heroics? No it sure doesn't. 25's will always be easier based solely on room for error. The only "hard" part of 25man raiding is finding 25 skilled individuals on any given night.
Lets look back at last tier: Heroic Lei Shi
10man strat involves 2 tanks, 2 healers 6dps
2 Tanks need to constantly taunt off each other WHILE they juggle the taunting of the adds as well. Now I'm not saying its impossible or really all that hard, but at the end of the day you need to be far more organized then the 25man strat.
25man strat involves 2 or 3 tanks, w/e healers & dps.
2 Tanks on the boss full time, and either a 3rd tank handling the pickup of the adds or a DPS warrior or feral druid gather up the adds and kiting in a circle taking next to 0 damage.
I'm sorry but the game has been like this since the start of BWD & BoT. 10mans are definitely more of a challenge and something I welcome as a 10man raider. I'm not posting here to cry or complain, I'm content with the skill level of 10man and only posted because of the various pudding heads claiming 25man is "way harder" then 10man.
As for an extra loot, sure it would be welcomed, especially due to the RNG factor on loot. Not seeing 1 dagger, 1 bow, 1 trinket from Lei Shen the entire tier (20-40) kills is pretty sad. Don't even get me started on the thunderforged difference (Exodus receiving 5 thunderforged trinkets off of their Lei Shen kill this week for instance, 5 out of a possible 6 loots) Gotta love RNG.
---------- Post added 2013-03-12 at 02:00 PM ----------
How's raiding 30+ hours and 6 days a week for a normal mode Lei Shen kill treating you? I'm not sure you should be commenting at all.