There are 1000's of ISP's in the United States. WISPA alone has a huge number of members, and those are only ISP's offering wireless.
In the specific example I gave, yes, that would require god to take action. HOWEVER, that does not mean that there is no possible way to indipendantly prove the existance of god (assuming god does exist). Maybe we'll invent a time machine and go back and directly observe god creating the universe. Maybe we'll find a cheat-code that lets us see outside the matrix. Maybe god's simulation (if we are in one) will crash and we'll suddenly see nothing but white with a boot screen scrolling past our eyes. These wouldn't require god's help.
Not believing in something without substantial evidence does not imply that the person is completely ruling something out. Just like most people don't rule out the possibility of bigfoot existing, but few people actually believe bigfoot exists because we don't have any evidence of bigfoot, only a long history of consistently debunked reports of bigfoot.
It is one (unprovable) thing to claim God exists.
Really? I can think of dozens of ways god himself could prove he existed, if he did. He could appear as a 100 foot indestructible giant, cure all cancer instantly, give flying superpowers to children, rotate the colour spectrum, abolish fluid dynamics, raise the dead, turn the oceans into maple syrup, cause all competing religious texts to burst into flame, invert the laws of magnetism, etc. Any combination of the above would be pretty damn good evidence that he exists.
The only reason nobody can prove he exists is because none of those things has happened. I wonder why...
Almost all the reasonable suggestions I've seen for internet-connected things (coffee in the morning, lights as I come in, etc) have already been solved with timers (coffee, thermostat, etc) or motion sensors (lights). Most people who complain about motion-sensed lights are doing it wrong anyways. CFL's (what most people use now thanks to various laws) burn out really fast if they are turned on for less than 15 minutes (it's the actual time duration, NOT just the number of cycles), so they just need to adjust the timer for longer durations and you can still have an override switch if you want it.
But seriously, we don't need everything connected to the internet. In the case of fire alarms (like in this article), wire them in with battery backups and connect them to the phone line (outgoing only), that's ALL they need.
"What man has done, man can aspire to do." -- Jerry Pournelle, about space flight