Some people over complicate things.
Blogging is simply a communications tool.
Once the piece of information you want to communicate is acheived, its purpose is done. Therefore the length of the blog is merely something for the aesthetic.
Of course it could be argued that a blog is also an “emotional delivery machine”, or an “action encourager”. But these still use communication to happen.
So when a blog post is written in a terse fashion, being economical with words, as long as it acheives its purpose it matters little that verbosity is ignored.
Writing less, means writing better.