Whether right, wrong, or indifferent I feel Disney can sacrifice the overall guest experience for the better of many and deal with letting few down.
I personally disagree with the concept however many many do it, what brings my family and I back is that it still feels special. I can tell you when its starts feeling "Vanilla" it time for a change and this is my biggest fear.
It comes down to the cast members... As long as they hire service oriented cast members Disney can make it more Vanilla and we will still keep coming. Look at how small the cars for the 7 Dwarf mine train ride are, Disney knew that 95% of the people will be comfortable on the ride.... that might be good enough for them.
Who is going to loose out, well, we are... kids will be happy no matter what, give a kid a Happy Meal and they think its the best food in the world, give an adult the same meal and well, its out with the trash.