Haha.
My speculation goes the other way around.
(Dongle is the payload pusher, Tool is the jig; No USB cable whatsoever) In brackets, because thats not that important to understand their concept - if they say, that they also can sell "CFW only" at which point all dongles and tools would only be a "one time only affair".
Also I don't mind buying "their" tools, if their are "good" - but buying their CFW...? (= chaining yourself together with the fait of the company for worse for ware - is a different thing. What ever they install "semi-permanently" on the switch they would now be responsible to "service" for the entirety of the Switches lifetime, regardless of what Nintendo does.
Thats "interesting". As in "definitely wait and see on that one...".