What does this have to do with Green Bay's defense being terrible? It's not like he was facing Micah Parsons yesterday, the Packers do not have a good pass rush, nor do they cover well, nor do they stop the run well.
The 49ers offense as a whole didn't play great. Fortunately for them, they were playing against a gettable defense and their own defense came up with some plays when they needed.
They are going to need more out of their passing game to beat the Lions and I think they'll get it. As long as McCaffrey, Deebo, Aiyuk, and Kittle are healthy for the superbowl I think they'll win the whole thing barring another flukey turnover disaster.
The Packers put quite a bit of pressure on Purdy. They were knocking him down a lot. Purdy always seemed to be picking himself off the turf. Not sure if they ever sacked him though?