I've seen micropropigation of cannabis on a commercial scale put to work. These were photoperiod variety.
One thing we learned is that the plants grow as if they were revegged. (Monster cropping style. Think tons of new modes and branch sites appearing. )
You end up with a plant who will make a wonderful mum, but I think the structure it throws off when it start vegging is less ideal for autos. You wouldn't wanna be stripping too much of that new growth off, but if you don't, you may end up with a bit of a tangled mess.
A problem that might need to be worked out for this to be a success I think.