Short blog posts are hard – they need editing and manipulation to get the point across in fewer words.
Long blog posts are easy – they’re easy to write because all they need is a rambling narrative to fill space.
Short blog posts are easy – they’re a simple idea translated into simple words.
Long blog posts are hard – they need planning, setting out the content in a clear and lucid way.
Short or long form doesn’t matter; it’s how the idea in your head is translated into your words which matters more. Don’t get hung up on the length and learn when enough is enough.