I read this 'capsule wardrobe' as more of a list of things that you could have one of that type in the wardrobe and dress pretty well- so I have jeans but not those exact ones, a black blazer, not that exact one, black wool jumper, one crew neck, one navy v neck, camisole but not so lacy.
On that front, this is pretty much my wardrobe. I don't wear Breton tops (too Kate Middleton) and I don't have a Chanel style jacket as it's too cropped for me, but they have been in style. No kitten heels due to balance issues, I wore them in the 90's but are over for me, but they are in style.
A lot of people are taking this a bit literally- I mean I don't think even the fashion editors think you should have one wool jumper and call it a day. Or one very distinctive dress.
I think the idea though is to give people who struggle to dress (fashionistas won't have a capsule wardrobe) some good common-sense basics to work out from, and that list is pretty much that.
As for blazers- tailoring is coming back! So, perhaps that black blazer is ahead of the game, and if you wear it with the right jeans/footwear it'll look cool. I still wear jackets a lot and get a lot of compliments, but I think the trick is to style them with other current trends, I think if you wore that black blazer, those cigarette pants, that cami and those kitten heels you really might look like you were working in an office in the 1990s/early 2000s.
I love a boring palate of navy, black, white, cream, beige and then just add stuff through bags, a nice winter coat (tweed is in). It's pretty classic dressing, and I agree it's not for walking the dog! (one proper warm puffa/mac with hood was also needed).