I mean, I really do NOT defend religion, because over all, it really is a crock of BS twisted history and Baby's First Philosophy rolled in to garbage cults.
... Though there ARE multiple reasons an "all-knowing" god would test their creations, even if they "knew the results". This happens all the time in the real world. Some engineers just enjoy seeing their creations do something, even if it's doomed to be a prototype. Software engineers test their stuff all the time when they "know" what it will do.
Hell, 99.9% of science itself is getting a solid idea before you run the experiment. Remember: scientists test hypotheses, not hair-brained ADHD shower thoughts.
So while religion is overall total BS for dummies, individual components DO make sense, in their own way. It wouldn't be so popular if the pieces didn't make more sense than the whole.