This exists because the tools existed to enable the author to make this in a reasonable timeframe/effort.
If something better/smaller exists, use it. If it doesn't exist, it might be because making it smaller requires tools that take more effort/time to use and thus no one has bothered.
I've traditionally liked crapping on bloated software too, but have come to realize that the plethora of software is fine and I can use whatever I like and abstain from what I dislike. The simple fact is that the alternative to bloated software is a subtraction of that software. And sometimes they happen to be useful, despite their size.
But my comment was really in response to your second line here. I disagreed with your assertion. The alternative is that this editor doesn't exist, meaning "no editor at all" with this specific featureset/design/etc. And if this editor is better than a less bloated editor, why shouldn't it exist?
This exists because the tools existed to enable the author to make this in a reasonable timeframe/effort.
If something better/smaller exists, use it. If it doesn't exist, it might be because making it smaller requires tools that take more effort/time to use and thus no one has bothered.
I've traditionally liked crapping on bloated software too, but have come to realize that the plethora of software is fine and I can use whatever I like and abstain from what I dislike. The simple fact is that the alternative to bloated software is a subtraction of that software. And sometimes they happen to be useful, despite their size.