"when at my citizenship interview I had my Passport and "THE BLUE" travel document put on the desk in front of the IO's eyes and he asked me to put them on the chair, so obviously he saw I had a travel document which I received after I sent my application, so if he wanted he could ask me to take a look inside the Travel Document, knowing that anyone who has it, is for the purpose of staying over 6 months overseas and not putting in danger the GC."
I agree with your point.
The IO should have checked your passport .
It is sad to see how people are after you , criticizing you to bring down your moral but suppose it happened with one of their family member what they could have done?
Call USCIS ?