This is trivial, like saying Hitler didn't kill all the Jews in Germany. It's perfectly true, but does it make things better in any way?
There is no evidence at all for this hypothesis - the geth *let* the surviving quarians get away, remember? And anyway what's your point with this?
But it isn't trivial. It is actually extremely important because there is a massive difference between killing some/most and killing all. Particularly the way the Government acted during the lead up to the Morning War. And after the disastrous conflict that saw nearly the entire Quarian race wiped out and all their territory claimed by the Geth. That is exactly when the people would demand answers for how it happened. Any form or thought in the previous Government should have been removed as the average person would find them poking the non aggressive Geth into aggression and killing any Quarian who dared to support them as stupid and bad. The history should have then been told differently resulting in Quarians looking at the actions with the Geth and what they did as inherently bad then the inherently good as we are told they think.
The only thing that would validate how their history came to diverge so much short of a Super Stalin manifesting it self is the Geth's indiscriminate killing of every Quarian even ones who helped them and offered no resistance only to be gunned down. This action would in he eyes of anyone with Geth support or neutral would suddenly validate everything the Government was doing. Thus they would accept what the Government did as necessary and not a terrible thing. Thus allowing it to be omitted from history. This adds to the fact the Quarians though they escaped the Geth not being let go.
This started because Iakus posted:
Yes. Once EDI had a chance to turn on the crew, she did not take it, and chose to continue aiding them
Just because the anti-geth faction wiped out the pro-geth faction does not eliminate the fact that there were quarians who helped and fought alongside the geth. That knowledge of their existence was suppressed does not mean they never existed. The geth remember them and honor their memories
Which out right ignores several facts. Which as I pointed out a video or two doesn't mean the entire pro geth faction of undetermined size spread across multiple planets were wiped out by their fellow Quarian. Like wise even if people are frightened into not actively helping that doesn't stop them from having their own opinion that the Geth are not that bad and that the Government is really over stepping their bounds. This would come into play post Morning War were they are trying to reassmble their socieity into a new form. All those people would then be speaking out against the actions of the Government and what took place.
This would lead to a different history. Were as in game we are told the Quarian history paints the Geth as ultimate bad guys and the actions of the Quarians as validated. Completely ignoring the rather negative bits of their own history leading up to the Morning War. This would necessitate a fairly brutal attack by the Geth to get all surviving Quarians to change their opinion to fully support everything that happened leading up to the Morning War. It is the only possible way the information about what they did could fully be suppressed.
This sort of brutal war against all Quarians regardless of if they out right hate the Geth or quietly support them simply not wanting to get int any trouble so were quite about it. Is still very important to think about when dealing with over all set up of the Geth and Quarians.
Since you brought up Hitler first it is like Hitler killing most of the Jew,Christian, Gypsy, Mentally Handicap, Gay, etc population of Europe. Then after wards building a memorial and saying he is sorry he did that and that he really let the rest get away. And everyone would be ok with this?
This logic people are using when trying to pain the Geth as perfectly innocent examples of how Synthetics are not a threat to organics is very disturbing in it's implications. By this logic the homophobic nut job that shot up the gay bar in Orlando is or was clearly not a threat. Because he only killed some people and not all of them. And if he only apologized later then it would be fine cause he isn't really a threat because he let some get away.
That is the implications inherent in the argument particularly Iakus's argument when trying to out right ignore the actions the Geth took which went far far beyond what was needed. While at the same time still painting them as completely innocent and not a threat.