I always think this is such an odd sentiment. That 1% builds 100% of the software for the other 99%. Doesn't that make them disproportionately more important?
Liking using something is a bit different than having to use something. Are you saying you don't think the majority of developers need to use the command line for things like git, npm/general dependency management, running local web servers, compiling apps, continuous integration, etc...?
Again, I'm not talking about what's more powerful, and I'm not saying that everyone works this way, but I am suggesting the majority of developers do need the command line to do their job.
Unfortunately, I'm not aware of any usage statistics for the command line in isolation. But if you look at the most popular technologies, e.g., Node[2], then you can most likely extrapolate that the majority of developers are working with the command line.
CocoaPods, Carthage, Fastlane, git, all require the command line, and most teams use some combination of those. Not to mention Xcode literally is just a wrapper around Unix processes like `xcodebuild` and `SourceKitService`. Then there's a whole host of other support command-line utilities for doing Cocoa development like `codesign`, `xcrun`, and `xcode-select` off the top of my head.
Again, I wasn't making argument about where developers spend most of their time. Just that they need the command line as part of their workflow.
Being a developer is not a synonym to be enamored with an UNIX CLI.
In fact, a graphical REPL is much more powerful.
So no, that 1% does not target the other 99%.