2 relief appearances is hardly the same as throwing 400 pitches in less than 30 hours.
Osorio wasn't pitching anywhere near her best either. One thing we do know, Paige gave up a grand slam. That's really the bottom line.
Finally, you should have more confidence in Pendley. She couldn't have done worse.
Gasso has openly said that she was concerned with pulling Pendley from SS at that juncture of the game. The other thing we don't know is how Pendley's sprained ankle would have reacted to pitching.