The thought had crossed my mind. What if Strzok wasn't fired for his partisan texting with his paramour, but because he had ceased to be a true believer?
This is the letter from OIG Horowitz to Grassley and Johnson explaining how Strzok and Page were found out. Note in the body of the text, they will refer to SC any criminal matter they find upon completion of their review.
imho i do think it would be well to hold off criticism before any official findings of criminality, for reasons such as this.