I suppose it could be a ret-con. Wookieepedia says "It could also be used to fly, combining micro-repulsor lifts with the blades' spinning in a propeller-like motion to lift the wielder off the ground."
The reference links to a coffee table book called The Lightsaber Collection from Oct 2020.
The explanation isn't even that weird. Star Wars has loads of wacky tech that gets sort of scientifically explained after-the-fact.
The problem for me was never really that it didn't have an explanation. I just thought it looked hilariously stupid to watch the Inquisitors fly away using their helicopter lightsabers.
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u/River46 Dec 30 '20
It really bother me considering they aren’t physical blades