None ironic answer:
I dont openly support piracy related inquiries here.
But in this case I'll guess I do - in a round about way, because you insist, that its the polite thing to do.
People have asked "if they can just connect harddrive" multiple times in the past. And the thing is, that none of the "featuresets" of CFW solutions have even been announced in detail. USB storage support seemingly isnt the first thing on peoples mind, when they promote "solutions".
And if we say that the average Switch game is 6GB in size (which is set intentionally high already), and that for the price equivalent of one retail game you get a 200GB sdcard, ... this seems like on ok decision. (Factor of 33 for those that dont want to do the math.)
The Switch is a portable platform - and is used by the majority of its users at least partly that way.
But the image encapsulated that already. That, and the fact - that I dont want to always be the person that spells things out in here - others could have given the answer. The image didnt prevent them from doing so.