Perception is never irrelevant. The Geth at the time operated solely on logic, and 100% of the time organics attacked them thus it is only logical that these new people will too. Eventually they evolved past that and they recognized the difference, but you can't disregard that at the time they literally did not know better. That's why punishments for children and punishments for adults involving crime are treated differently. Or would you give a five year old who fired a gun the same sentence as a 25 year old who fired a gun?
Yes, I am referring to that.
They built a platform with Legion's capability once so why can't they do it again? In fact, we know that they're capable of doing it more than once by looking at Not-Legion. Legion only asserts that in ME2 anyway.
Broken logic, which makes it no wonder that the quarians rightfully attempted to deactivate and reprogram the malfunction. Every organic they ever met obviously didn't attack them. Geriatrics and infants can't hold a gun, but they were slaugtered nonetheless. But nevermind that, their own propaganda video even shows a not insignificant number of quarians (nevermind the other species that had no quarrel with them, such as Erinya's asari partner or the Council peace envoys) attempting to protect them, they ackowledge this. So "100% of the time organics attacked them" is insane logic or yet more Legion propagandized doublethink. Whether or not you think they've the right to self determination is irrelevant, they're genocidal and indiscriminate participants in unnessesary mass murderers of billions of organics. Quit trying to candy coat it.
Did you really just compare software programs that are, in large networks, cabaple of quadrillions of calculations per second and have unfathomable levels of data storage to a 5 year old child? Stop anthropomorphizing the things, or do you think EDI has the same ability to reason as an infant? Hell, a large portion of the geth were built as machines of war, literal killing machines. They know what killing is. They were programmed for it. They did it to their creators and the Council species on purpose due to flawed coding. There is a mass grave that one could fit modern China and India's populations that they are responsible for. Even if they were comparable to a "five year old" (they aren't), yes, I would kill that five year old without question if it somehow managed to kill thousands of people intentionally. Seems like a logical public safety decision. One death is an accident. Two billion+ is malicious intent.
Geth being playable in multiplayer was a mistake specifically for the monumental lore asspulls needed to justify their presence there for anyone who destroyed them (especially if you did it intentionally like I did). I'd seriously doubt that could be used as a reasonable basis for including them in anything in ME:A, especially considering that they were optional DLC. Nonetheless, I've a feeling bioware won't give up it's precious pinnochios and all the lore written for them either way, and am expecting an asspull or a canon that includes them.