SDSU is D1, FCS. THey are no push-over either. THeir QB is pretty damn good and could start at a lot of Power 5 schools. Big dude, who can sling the ball and runs very well. I have nothing to back this up other than watching and reading a fair amount but I'd say the top four FCS ranked teams could beat a lot of the Power 5 schools. SDSU, NDSU, Montana State and Montana. And yes, I'd wager they'd all beat Temple.I doubt they’re that good. But Temple is plenty good for the first game and as you said D1 so they help your Bowl eligibility, smart move.
Who ever scheduled SDS for the first game was an idiot and should be canned. No winning that game. They’re capable of beating a lot of D1 schools. So if you lose you got beat by a D2 school and should close your program (Michigan & App State). If you win you padded your schedule with a pud school (something a lot of SEC schools do late in the season and I don’t really blame them).
But with SDS you don’t win either way. Really stupid move.