What you're pointing out is a quality of the Mac community, which has a certain amount of overlap with the iOS community.
In this particular case, the company - Panic - is a highly regarded indie Mac developer so the copy reads like how it would for Mac apps.
Many Mac users geek out on user interfaces that are sparse and simple and uncluttered - this is the audience to which this SSH client is pandering so it's no surprise that they're marketing it that way.
In reality, most typical iOS users (not the same as Mac users!) want something functional that gets the job done and don't really give a hoot about having the app 'get out of the way' or be 'crisp' (and the AppStore top seller lists would seem to indicate this), which, as you have mentioned seem to have little meaning for a Unix command line crypto/networking/admin tool.
When I PuTTY into a Linux box or, on a linux box, type "ssh me@sweetbox", I don't see any clutter. It's pretty sparse and simple - just a brief prompt and a blinking cursor. I don't even know how it could become more than that...
I think it speaks volumes about the progress of iOS apps (and iOS in general) towards being a usable computer that a SSH client is exciting.
Right, because with PuTTY on your Linux box, you don't need a virtual keyboard on the screen. Most of the complexity is off-screen. Touch devices don't have that luxury. Now imagine PuTTY with a virtual keyboard built in and you start to see some clutter.
Many Mac users geek out on user interfaces that are sparse and simple and uncluttered - this is the audience to which this SSH client is pandering so it's no surprise that they're marketing it that way.
In reality, most typical iOS users (not the same as Mac users!) want something functional that gets the job done and don't really give a hoot about having the app 'get out of the way' or be 'crisp' (and the AppStore top seller lists would seem to indicate this), which, as you have mentioned seem to have little meaning for a Unix command line crypto/networking/admin tool.