No it is not. Preserving an entity means preserving the entity at that point, including the 'state' of it.
What you said is true in that the reapers have the blueprint, but that is just the blueprint ->initial state. Aka the information that there are a that many extremities and where they go.
In database terms, you save the structure of the db, but not its content. That is not 'preservation'.
Well then we can safely conclude the Catalyst is only concerned with saving the structure of organics, and not their thoughts and everything else.
Which is perfectly understandable, thoughts and everything else are byproducts of an intact, working structure. Rebuild the structure, the content will come on it's own.
Don't get me wrong, I'm not saying I'm fine with being preserved in DNA-goo. But the Catalyst
is preserving life.
Oh and tend to forget this, but in the game their thoughts and everything are also preserved within the Reapers... I choose to ignore this information though. Though.. then again, Javik speaks of 'memory having it's own biochemical marker' or whatever, so I suppose this stuff is possible in the MEU. *shrug*
About the Geth:
The morning war is a totally different topic in itself. But it basically boils to 2 species fearing their destruction and trying to destroy the other one to prevent this.
That the Quarians were indeed not completely wiped out should tell us something. That they did not attack anyone else after their existence was secured (for 300 years!) means way more than a fight for this existence in the first place. (Initial geth capabilities to discern combatants from not-combatants is also questionable)
About the original post, even though my previous rant and all of ME3's problems, it still is a pretty good game.
Unintentionally killing 99% of your creators in a battle for survival should be proof enough in itself that there's at least some truth to the Catalyst's words. Intentional killing and there'd be no more Quarians.
And the Geth not attacking anyone else for 300 years means nothing. The conflict between the Geth and the Quarians (luckily) remained Created vs Creator. But, pretty much by definition, Created vs Creator is
always Synthetics vs Organics. And since
all organics
will create Synthetics, this is a problem.
It only needs one instance of Synthetics deciding that it's not just their Creators who want them dead, but all Creators (=all Organics) want them dead, and we have a problem. Thought is not unjustified either, cause the Creators wanting all Created dead is exactly what happened in the Prothean cycle.
p.s. EDI, upon awakening, tried killing
everbody she could. She killed all soldiers on Luna. The only one she didn't have succes with is Shepard + companions. (in my games pretty much always Tali and Garrus

).
edits: syntax, grammar, spelling... damn