The title almost doesn’t make sense. After all, if you’re using Deft, you’re ipso facto using Emacs. James Dyer explains it in a way that makes sense. The TL;DR is that although he has been using Deft, he’s decided to use Org mode instead. He lists several reasons for this, which you can see in his post. The thrust of his post is that there’s nothing wrong with Deft but Org mode and the other built-in Emacs capabilities are a better fit for his workflow.
The reason I’m writing about this is Dyer’s last sentence:
“I think this is an example of over time learning that emacs has a lot of what you want already built in and with org mode it gently nudges you to organise files in a more coherent manner leading to a more simple agnostic digital way of life.”
That is, I think, a great point. Emacs has a multitude of packages that provide a huge amount of useful functionality but many times, everything you need is already there.The great thing is, when you need more, there’s almost certainly a package to give it to you. As always, Emacs has your back.
UPDATE : Added link to Dyer’s post.