It doesn't give us a same standard, it gives us Twitter's version of a standard. You're points are almost totally right and certainly reasonable but the big pro

It doesn't give us a same standard, it gives us Twitter's version of a standard. You're points are almost totally right and certainly reasonable but the big problem is that a lot of sites are ending up just looking Bootstrap clones of each other with different names and logos. Standards are great and I'm all for them but for the love of god, please at least make it your own. Making it your own does not mean you have to deviate from any standard and that's a big part of what the author was getting at.