With absence of JPP, DRC, defense managed to generate 3 turnovers. 2 interceptions led to 2 offensive TDs. 1 forced fumble before goal line turned Washington TD into touch back.
While your list of wrongdoings is valid, the defense limited the NFL #1 run offense (after 2 weeks) to non-factor in this game. Special team TD is not fault of defense. Pass defense is indeed a concern without pass rush though.