One dimensional metrics are generally true for hobbyist with simpler usage patters. Case in point, PC gamers/modders. When you try to make decisions for a more complex problems (ie: choosing a handheld device to use for 20,000 mobile workers in 15 countries) then 'the best device' won't be measured with as simple metrics as the previous example.
Will you accept an iPhone fanboy citing (Apple's design decision of) not having a hardware keyboard when they fall behind in typing speed? Let's not pick and choose as you deem convenient. These products all have compromises, none of them are universally perfect.
I also think that you will have to eat your own words when this deficiency is fixed in the future (unofficial MeeGo for N900, maybe).