Am not defending Jimmy Choo shoes in any way here but the finish on the shoes (and on other high end shoes) is very different to mid-priced shoes. They have a softer, more suedey sole which isn't suitable for outdoor wear and besides, if one looks at the heritage of Jimmy Choo, or rather how Tamara Mellon grew the company, they were sold to be worn to award ceremonies and evening functions..
(Louboutin gets round this problem by heavily varnishing the shoes of his shoes, and as his often have a rather large platform, will have a more durable finish anyway)
It's actually quite common to suggest having them rubber soled asap as it will also give the shoe much more of a grip. (I used to work for Pied a Terre back in the 90s and would suggest this even then to anyone who bought evening shoes..) The shop should offer to get this done for you and if you live in London, recommend you take them to Classic Shoe repairs in Brecknock Rd NW1 as they're the cobblers all the luxury shoe stores in London use anyway.
As for the article, the shoes could very well be hers, the photograph used for the piece is of a model, as it clearly states!
JH's approach just isn't cricket, that's for certain.