Not every appearance is a save opportunity.
Lead by 3 runs or less;
ahead by more than 3 runs and the leading run (or tying not sure which) is in the in deck circle;
These are save opportunities, no others are.
Hoffman can get a loss when he comes in when the game is tied, and they lose. That is not a blown save.
Hoffman can blow a save, and then the Pads can come back and get the win. He can get a win or a no decision. Not a blown save, and a potential win or a no decision.
Hoffman can start an inning with a 4 run lead, and lose, he gets a loss and no blown save.
He comes in with 2 out in the 8th and the Pads trail. He gets the out, Pads then bat, and take the lead. He then pitches the 9th and loses. That is a loss, but not a blown save, because he was eligible for the win and not the save.
If you blow a save and get a loss they are both recorded as separate stats, just like a HR is a HR, a run, a an RBI, an extra base hit, a hit, 4 tb etc.