People generally live with that, they install so much crap on a windows machine and that ends up taking masses longer to boot than any ubuntu machine I've ever had. I know that doesn't sit well with those who like a rapid booting, tailor made distro, but again that's a vanishingly small part of the market. Generally, if you're concerned about endless configurability and boot times, Ubuntu isn't targeting you, which might feel like a betrayal of the traditional linux core, but they aren't particularly of concern to Shuttleworth.
I've been playing with it off and on for five years, messed around with puppy, mint, dsl and fedora too. I'm still part of Shuttleworth's target market because I don't know more than a handful of command line instructions (by heart, I've used dozens with google university's help), and Arch snobs still piss me off.