Marianne, I had to go straight away and look at the catalog. (There's also another picture on page 22 with flat oxfords and socks.) So I think it's definitely a look. And I think you could pull it off because you are tall. Looking at those particular shoes, they seem to have a more prominent sole than some of the other styles I've seen. I also think that if you are going to do this look it really helps to go very fancy on the detailing of the shoe as the jcrew one is-- with all of the spectator seaming (that's what I'm going to call it). So, I do think there is something to a look that involves snazzy flat oxfords and ultra skinnies that hit at the ankle. I keep trying mine with jeans every now and then. I think my eye is adjusting a bit but my oxfords are very streamlined so I'm still preferring them with skirts and pants with pumps.
Since this is a potential "look" I do think you have be risky about it. Hence the ultra skinny jeans and over styled oxfords. If you're conservative about it then it won't work.
