The I2C is only for short wires (within an apparatus).
Do you want to use long wires ?
Nope, these will all be relatively close to each other.
A power loss will make the slave react to 0x00 ? What if three slaves have power loss.
If they are the same devices with the same timings, the master thinks there is only one slave, and sets it to a new address. But all three have now the new address.
The only time this would be remotely possible is if someone tells all three to do a discovery at the same exact time.
What if someone pressed the button on three slaves simultaneously ?
This is why there will be documentation specifically not
to do that. One at a time.