If he's playing in the 2nd half of any of these games, or even late into the 2nd quarter, yeah, I agree it's dumb to have him out there. But you can't keep these guys in bubble wrap.
The start of the season, lately, it seems that the quality of play has been suboptimal. I believe that's because starters see very little game action in PS anymore. They're basically getting their PS in in the 1st 2 or 3 weeks of the regular season. And if that's the way everybody does it then whatever. But less games, less padded practices, less reps = a lesser quality of play, IMO.
If you're an Aaron Rodgers, or any QB really, that's on the same team with the same offense, I don't think you need many PS reps. But when you go to a new team, and have to learn a new offense, especially with the turnover the Texans have had, I think a few extra PS reps would be a good thing. If he gets injured, he gets injured. It's not like it's costing us a trip to LA in February.
I think if you want to "extend the dream", then you need to be as prepared as possible. Having him just play a handful of snaps, if that much, doesn't get you prepared. Especially since I think the early part of the schedule is their best chance to rack up some W's. You want to have your best shot of getting those. I mean, I guess you do.