how often do you experience transplant shock? if rarely, i would not worry one bit. I've yet to see a pot plant shocked from trasnplant after 200? 300+? transplants. It's not a high probability problem, at the least.
Part of my evaluation of a seedling pot is how easily i can slide a plant out.. Small pots should be fairly soft so you can loosen it up on the sides and give a little push from below to get the entire plug to slide out with minimal effort.. just a little gravity is all it should take. Yes, some lil seedling pots allow roots to easily escape, so anything fitting that description can simply be placed into a new pot and the roots will grow through it. always better to remove that, too, though.. any physical impediment slows roots down, simple as that. no reason to self-inflict such a context when transplants are easy as pie to do in a normal way.
the drawbacks of a large container and small plant far, far outweigh any miniscule chance of shocking your auto with a transplant. .. again if you chock plants often, maybe don't do this, but most people should be fine.
Also, it's about DLI not daylight hours. If you live in a region with weaker sun, all plants autos and photos will suffer equally. If there is sufficient DLI in your region and time of year you grow, then the autos will fourish just fine with the same benefits you expect from growing a photoperiod outside or any other plant.. it'll be swimming in photons from all angles an not just from above.. there will be no difference in DLI from top-to-bottom of the plant, so you should avoid larf if it is spread out to receive light efficiently. You shoudl get a much better yield from them outside, and if you don't it's not because of a short day.. places around equator have shorter days but high DLI...
photons per second (rate) multipled by time (hours of light) = DLI (there are world maps with this DLI denoted per region)... depending on where you are, the rate of photons can easily counteract hours of light and still result in very good DLI... and the opposite is true too.. you have 24/7 light in some areas for weeks or months at a time, but the DLI is very low, so it's a shit place to grow outside even though it's 24/7 light.
autos outdoors can avoid a humid season.. this is a reason i'd grow autos outdoors..
the only reason i'd ever grow an inferior marijuana plant wiht ruderalis genes would be outside to avoid the extrem RH% of late summer in my local area.