Hey I have a new theory about whats the cause behind braindrop being as he is today.
I´m playing fallout 4, so it occurred to me that braindrop in the beginning of wvm was the real braindrop, and then he was abducted by the institute and replaced by an synth posing as him.
Unfortunetly the story of wvm is to complex for the synth to understand, so he gives all kind of excuses for not updating wvm to avoid being discovered.
Now that the truth has been discovered a squad of brotherhood of steel knights has been sent to eliminate the braindrop synth and to retrive whatever wvm technology in his possession, hopefully the scribes will be able to put wvm back to its original intent, with lots of incest with willow, azel and wendy.