Nah
If you miss from 12 yards doesn’t matter if it’s saved or you find Row Z, you’ve goofed.
Yes there are phenomenal penalty saves but they aren’t the norm, and you can’t really expect a fantasy football algorithm to factor that in.
Even with great saves, the penalty taker has made it possible by either not hitting with another power, hitting straight at the keeper or telegraphing where they are going to put it.