A proper 1 way door for your example would be to build warehouses in a way where cell phones don't work. Once people have died, you cannot make a change to allow cell phones quickly and cheaply. You're stuck with the warehouses, and either have to stop operations and build new ones, or accept the risk that more people will die
2 way doors aren't about making bad choices, they're about the response time and cost for when you identify that the choice was bad. You can make bad choices for 1 way and 2 way doors.
The best example I can think of for your argument is the flint water system. What looked like a 2 way door was actually a 1 way door, when the choice to switch water sources completely destroyed the pipes beyond usability, and any water flowing through the pipes would be contaminated, regardless of the source.
A 2 way door equivalent would stop being contaminated once they switched the water source back, even though people had drunk contaminated water
2 way doors aren't about making bad choices, they're about the response time and cost for when you identify that the choice was bad. You can make bad choices for 1 way and 2 way doors.
The best example I can think of for your argument is the flint water system. What looked like a 2 way door was actually a 1 way door, when the choice to switch water sources completely destroyed the pipes beyond usability, and any water flowing through the pipes would be contaminated, regardless of the source.
A 2 way door equivalent would stop being contaminated once they switched the water source back, even though people had drunk contaminated water