I don't think Patrick was too concerned about greens going from 7 to 10, but rather when greens are designed or altered to allow stimping at 12 or higher - if you want to stimp that high, even if only once a season, the allowable contouring of the greens is much limited than if 10 is the highest you ever plan to take them.
I don't think many of us have a lot of experience on greens that fast, because it costs a fortune to keep greens really fast a lot of the time, and you'd have to be smart enough to know when the weather simply doesn't allow it and back off (presumably over the objections of the members) My home course never could, half the greens would have no pinnable location if they stimped at 12, the slopes are simply too big. Even at 10.5 or so, where they put them for the occasional big tournament, if you get above the hole in some places, there is no way you can keep the ball on the green. But the slopes are large enough that they're pretty obvious so you have no one to blame but yourself if you go there.
There's a course I play once or twice a year that gets them "really fast" when conditions allow (the owner has claimed the highest stimp reading they ever got was a shade under 13, but like most I don't own a stimpmeter and have no reference to tell if that's true or not) All I know is that those rather flat greens really come alive, but there's a huge inbuilt advantage for those who play it regularly and know the slopes intimately. When I'm playing an approach from way off the beaten path (you've played with me, you've seen how far afield I sometimes go!) so I can't ask questions from my member friend (who is down the middle with boring regularity) it can be confusing and frustrating to hit what I think is a terrific recovery shot only to see it roll all the way to the other side of the green because there's a slope that's totally invisible from approach range - or sometimes even from short pitch range.
I usually don't "spot chip" either. I was thinking more in terms of the sort of stuff greens like Dismal's White (Nicklaus) course allows, where you can play away from the hole and use the slope to get where you need to go. Not just rolling but by deflecting off them - which can only be done on a real slope, not a tiny slope that's super fast. I like greens/green complexes to have enough contour that occasionally you have that sort of option. I'm not saying every green should be a partial bowl like Dismal, you don't need the option on every hole and the slope(s) can be within the green and still be useful for certain pin positions.
I think the reason good players like faster greens is because in general, faster greens are better maintained and thus roll truer. I've played really slow really true greens only overseas. If you get a stimp 8 in Ireland they can be fantastic well maintained greens, and only kept that speed due to the wind. If you get a stimp 8 in the US, usually it is because they don't devote much money to maintenance - if they do they always seem to go faster.