This is a farrier issue, for sure. But I don’t think one extra nail per shoe will make a difference in a 1000+ lb animal who is galloping, etc.
I agree that it’s a trim issue (long toes) and/or nails are too low.
I would probably give the farrier one chance to explain/change if you otherwise think he’s going a beautiful job. Shoes are supposed to last the full trim cycle. Of course things happen. But this is clearly a pattern that points to the farrier.