We all knew there was 10% reserved before this article. Anyone expecting to get that 10% back is kidding themselves, it's reserved for a reason, you take it all back at a later date, you stand to lose functionality. They may find out that in real world scenarios they never go beyond 5% GPU useage for snap / whatever, but you'll never see it all "in game".
In typical MS fashion, it's being sold to you as a positive thing. A negative is somehow now a positive. And it's their usual stick and carrot approach, the hope that in the future, the console will be better. Maybe. Buy now, play later.
The irony here is DF highlighting it all. They never took this into account with their Equivalent PC tests. I used to enjoy DF, but they're now just a MS mouthpiece. Genuinely surprised the Eurogamer chiefs haven't done something about this, they can read the internet, even their own forums have people calling DF out on this.
MS need to shut up and let their games do the talking. If they're that convinced of their platform, show us. Don't treat us like idiots. Show us why we should want to give them our money.
Their desperation reeks.