My big problem with Oblivion's MQ stemmed from the leveling anyway; you could go through the whole thing at level 1 and face nothing but stunted scamps and clannfear runts, which was ultimately more viable than fighting hordes of Xivilai and Spider Daedra at level 20. Dragons are powerful regardless of level, so hopefully that makes the MQ a bit tougher to complete.
But, at the same time, you guys have to remember that the biggest complaint a lot of the casual crowd has about this series is that it "lacks focus." Everyone will tell you that "Oblivion was great, but I spent 20 hours doing other stuff and forgot what the MQ wanted me to do, by that time I just couldn't get back into it." This is the mindset of an audience that will likely buy millions of copies of Skyrim, so Bethesda does have to cater to them a bit, like it or not.