Very good points Jim. For me, it's more about being able to manually stop and resume, I can double tap the FLUX button now to pause (I never tried it long term though), this would be like that with a safety net. I would be able to stop the machine when I am going to be away and resume it when I return, so moving the hotend isn't really a problem.
I don't have any experience with heated beds, but did not realize there was that much of an issue with contraction, just thought it was more of an adhesion thing for the first layers. Definitely makes me more pleased with the FLUX!
The with the way they are planning to be able to redirect power via diodes, combined with a UPS system it wouldn't really be a stretch to allow enough power to the motors to bring the hotend to zero point before cutting it and only supplying power to the arduino/pi.
Although any implementation of this kind of feature is probably further down the road and not so high on the priority list, it does not seem logical that with all the technological brilliance that is involved in 3D printing and the FLUX in particular, that it is hamstrung so badly by any slight power interruption. Just seems kind of silly and backwards.