We don't know enough yet to know how MS is going to avoid these--either they learned their lessons with tiling or MS just built an entire system around too-small of memory with the intent to irritate developers and tank performance.
Yeah, seems to me like the majority of folks are happy to default to outrage that MS #@!%!-ed it all up. Do we think their engineering team have been replaced with a room full of chimpanzees since 2005? Yes i understand the cost pressures and broader target audience in play now but it just seems like a more productive and positive use of our time to piece together how Durango can perform well, instead of the easy road of why it can't.