Nope. It can also mean "Look how easy it is to get started". That was my interpretation.
I was vaguely hoping the article was going to be about a mindhack for getting out fast blog posts. I can create the blog layout in 10 minutes, but the content is much more difficult sometimes.
Straight up default bootstrap is even worse in my eyes than craigslist style css. It's overused, and it's not enough to impress anymore. Take 6 more days, talk to a designer, and make this a real blog.
That said, this particular sort of design where it's not a standard blog theme and not a custom design, but is just tweaked Bootstrap just seems neither here nor there.
I think most readers would be OK seeing something looking bootstrappy, but not with something that is pure unmodified boostrap.
Even if he did want to do his blog in "craigslist style css"... Why do you care?
If the blog will be targeted towards more savvy tech folk like yourself, then I kinda see your point. If it's not going to speak to that niche then I say go forth with bootstrap!
edit: and I'm sure he'll customize as he goes.
I think this is a neat collection of frontend tools to make your Jekyll (or other static) blog snazzy. It's a good article in that respect: "Here are all the tools you need for a full featured Jekyll blog." But making the point of it being a "fast setup", as someone else pointed out, is a weak point, since wordpress and others are just as fast or faster.