There's a flaw in your logic though. True hets should be a guarantee. A race is a shot at luck.
If you like cars, here's an analogy. If you buy a car, and the motor fails/locks up/etc, the warranty should cover it, no? I understand that it's only covered for a limited time, due to wear and tear vs faulty parts.... genetics just don't wear away. We'll, genetics failed here, and a guarantee/breeders ethics should fall into place.
Things happened, and it could have been a number of reasons why the animal never proved. Sperm retention to produce the original spider het hypo in question, etc. Whatever it may be, that's not the question. What it was, was bringing to light that compensation was promised, and never delivered.