Hall of Famer Warren Moon says he truly believes Drew Brees didn't mean any harm with his stance on the national anthem protests ...

"I know what type of guy that he is, but I think he just got so wrapped up into his beliefs on the national anthem and the flag that he forgot to open his eyes and listen to what was being said by others that might not have his same belief about what all that means to them," Moon tells TMZ Sports.

"I know Drew as a person and I just don't think that's him ..