"That said, we'll be tweaking the tier 13 10-player drop rates a little bit (for the better) relative to the 25-player version, given that these tier pieces can't be purchased from vendors for Valor Points."
First you reduced the VP awarded for 25-man, then you increased the Tier-13 drop rate for 10-man. I absolutely have no issue for the tweak for 10-man drop rate. Bear in mind that 25-man also has to deal with the RNG of Tier drop. Our Paladin/Priest/Warlock tier has the worst drop rate. 25-man itself is already difficult to organize, just look at how many 25-man guilds now even existed? We have raided 10-man and 25-man within the guild, it's far easier to do 10-man, at least for us. We continue to do 25-man because we feel the incentive given to 25-man was still reasonable. Please do not tell me to just resort to raiding 10-man. These changes only give very very little benefit to do 25-man raid besides the 3 Tier tokens drop. We have been raiding since BC, and always found reason to continue for 25-man raid. Blizzard, you might as well just eliminate 25-man raid all together when 5.0 comes. With no solid incentive for 25-man raiding, it's hard for us to find reason to play WoW in 5.0.