Linux and emacs might be massively powerful in the hands of a competent, experienced computer user sitting mostly at their desk. For somebody with less time and competence, a tablet can give them much more power because they can use it straight away, in many situations.
GNU/Linux as a bootloader to Emacs can give a competent, patient and experienced computer user an usable enough desktop to get a real damn desktop system to work with, and that sorry state is not due to nature of such system but lack of real development toward a generic target.
Just see mails in Emacs, in a classic desktop word mails would be base64-encoded/makeself-alike archives files to be dropped in the recipient mail server, a FAR simpler thing than IMAP. All the end users have to do is choose an available domain name, with a main address and any alias they like. In the present world nothing stop a dev write a simple Email package in Emacs wrapping fetchmail/maildrop/notmuch to offer a simple config and automatically do the rest, only it's not there because we are too few to use Emacs like that and so there is no interest in such development.
Similarly office guys have FAR MORE interests in present directly and simply in org-mode instead of wasting time in PowerPoint/Impress/*, but they simply do not know org-mode even exists. The few org-mode users have not much reasons in a tremendous education effort who should start from schools instead of wasting public resources to feed some GAFAM surveillance business to teach equally complicated, but limited and limiting tools, to children. Consider that: a modern tablet i NOT at ALL more friendly than Emacs, it's easier only because being far more widespread people already know that with knowledge absorbed a bit at a time as we absorb our mother language in our childhood and when we start learning it formally we already know it more than enough.
Let's say you want to know your spending habit: how a modern tablet on-sale can really be powerful? How on contrary can serve such and so many other purposes well in Emacs/org-mode? In a fictional world how powerful is just grab their transaction from ofx FEEDS (not manual exports) in a local fully-integrated application instead of wasting time on countless of spying crapplications and slow services for doing very limited things with them? It's better for you a computing centered on you or one who use you for someone else profits just living some breadcrumbs to keep yourself engaged? It's better a fully integrated computing or a service-centered one?
You can use Emacs straight away too. Every version I have installed in the last few years uses CUA (Common User Access) key assignments for copying and pasting and a toolbar that makes it easy to open and save documents.
