Wow, seriously? That is the most asinine thing I've read in this whole thread.
What if there were people in the home? Is it moral for them to let them burn alive because they didn't pay $75? According to you it's absolutely fine.
The firefighters job isn't to pay for their home, that's fire insurance and if they didn't have insurance that IS their problem. The firefighters job is keep people safe, and they failed to do their job. They failed to uphold their oath. Period.
According to your logic, the mass media was right when they said Dr.Paul wants to let poor people to die if they don't have health insurance. But that is categorically false, because doctors won't turn away patients based on health insurance and shouldn't because it violates their Hippocratic oath and basic morality. Whether it is legal or not is NOT the issue, the issue is that it IS immoral and the firefighters acted immorally.