You can easily transplant autos without any loss, as long as they are still seedlings.
I put them in 0,5-1l pots after germination and always transplant them around 1-1,5 weeks after they break the soil. But as soon as the plant starts growing nodes and the root system develops, it will result in a loss of final growth, when they are still not in their final pots. The taproot is the key.
I practice this transplant-method for years now, just to keep them in a shed for the first days, to make sure that they will not wasted by temperature/bad weather in their first days. And of course I can transport them easy and stealthy to my final growspot, when kept in small pots/cups first.
When growing them indoors, or in a greenhouse, they should start straight in their final pots though.
But cloning autos makes no sense at all. It’s possible, but useless. An auto-clone cannot develop a full rootsystem and therefore cannot produce a full plant. It’s just a waste of time.
Better to run a few strains and check out, which one works best for you, then start another run and create fems of your favourite strains.
I use a 50-100ppm colloidal silver solution for reversing, which brings me best results. never had any hermies.
The ones on your picture are in too small pots for their size. You can still transplant them though.
But they are already too far in this stage, to grow to their full potential.
A big fact of autoflowers is the potsize, to develop a decent rootsystem. The potsize defines the vegetative stage.
They should be put in at least 20l pots as long as they are still in seedling-stage (first 2 leaves). This makes them often veg even longer - for about 5-6 weeks before they start flowering.
Smaller (final-) pots will result in a faster maturation and faster harvest, but with a loss in yield, as plants start flowering sooner (because their rootsystem tells em they’re ready to go).
I have to add that my point of view is growing autos outdoors.
But there would be a benefit of using smaller pots, when growing them indoors, e.g. in a sog grow, as they’ll finish up to a month sooner = lower costs.
Keep trying, autoflowers can be really great. Just toss the idea of cloning them. 