This is some pretty crazy shit. Yeah Green Bay is an exceptionally injured team by any measurable standard, but it is really difficult to hold any team to 0 points.
Even with a backup QB, that doesn't change the fact that experienced receivers struggled to get open against the Ravens secondary and the Ravens defense generated pretty regular pressure.
I get that it is Green Bay without Rodgers, Matthews, King, Burnett, Bulaga, Matthews, etc. and it definitely shouldn't be treated like a Super Bowl win or anything. But to completely discount the game because the Packers are currently bad is stupid, especially in light of some amazing individual efforts yesterday.