That's not what I meant. I haven't used PowerShell enough to have an opinion on it, but in theory the designers of PowerShell would have had the opportunity to

That's not what I meant. I haven't used PowerShell enough to have an opinion on it, but in theory the designers of PowerShell would have had the opportunity to observe text-based shells of the past and improve upon the paradigm. (For instance, I prefer using eshell to a traditional terminal, because eshell [in addition to giving the user access to Lisp as an additional scripting/interface language] it is not only the 'command line' part of the buffer which accepts input, but potentially other parts of the buffer; you can use Plan 9 style terminal features; cd to multiple directories simultaneously etc..)