Wolford is a mid at best, to low tier backup, and while I like him as a backup, I honestly think a lot of people were overhyping him in order to bring down Jared. An injured 9 fingered Goff was still miles ahead of Wolford, we shouldn't lose sight of that. While he brings a different element to the game that Jared (nor Stafford) brings with his mobility, the offence under him against the Cardinals wasn't really anything to write home about. He can make some throws as we saw, and he can make plays with his legs, but if we have to rely on him for an extended period I think people would likely call for a more experienced backup pretty quickly.
That being said, for his limited action he mostly did his job, I don't really think we can really expect him to do more. I don't remember the interception off the top of my head, but I don't like that he threw one really, we should have just been running to bleed the clock.
Perkins needs a lot more development with his arm/throwing ability before I'll be comfortable with him taking a regular season snap personally, he's got a lot of potential but he's still a ways behind Wolford. Depending on how he develops over the season I could see him taking that backup spot though, I like his running ability better, he just seemed to be late on his timing/throws a lot of the time in the preseason. How much that was due to being preseason or not it's hard to say.
He didn't play in that game, his last full game was against Arizona and then he got injured in his second series against Seattle and was replaced by Goff.
He took a decent hit against the Giants as well, I honestly didn't think that play call was very good for him to take that shot, but I guess he knows he can take a hit again at least.