Not sure if I’m not interpreting your post correctly, Mocata, but my last comment was addressing DominicCobb.

Adding to your post, there’s also:
a) Vader, Tarkin or the Emperor never bothering to monitor Galen after his exile/escape
b) Galen believing his flaw will never be detected by the Imperials in the middle of a battle by merely looking at the Rebels’ battle plan
c) the Imperials being unable or unwilling to send reinforcements to Scarif until the very end of the movie (roughtly 25 real life minutes after the battle has begun) while it takes like 2 minutes for the Rebels to send their whole fleet to the planet. Does the Empire have only 10 or 20 Star Destroyers in the whole galaxy?
d) the Scarif archives being guarded by a single guy during an intrusion/battle alert

while in the original you only needed to accept there was a flaw.