I can't imagine (as the author asserts) that people left Windows for Apple because of the lack of a command ssh client. Here's a thought: If you need to spend time on Unix/Linux machines, why not just run that on the desktop? I've been Linux only for 10 years and have no issues. OK, I do need Windows for the rare moments where I have to collaborate on Word or PowerPoint documents; Win in a VM (KVM/QEMU) gets the job done.
Does this new client support ssh-copy-id and passwordless logins? I have a couple of public-facing machines that need ssh; I refuse to enable password authentication as they'll get banged on all day!