You skipped the slippery slope and went straight to the scariest outcome. That isn't healthy.
Most people on here will agree that banning encryption is going too far. But it's ridiculous to use the worst-case solution as a pretext to avoid even thinking about the problem.
Are we talking about the same people, many among us here, who don't have any problem manipulating content to fit their view and banning Free Speech ? It's a tad of an hypocrite argument...
You are placing an almost legal liability on engineer to ensure the tool is gonna be only used to fit their definition of "good" which is a problem in itself.
Gun makers are not responsible for mass shootings. The ill-intended shooters are the only one responsible for their actions.
In a case like this, the developer could have added some periodic notification to the device or require the device user to rotate a code or reauth with the service periodically to limit abuse.
Can you think of a modification like that you could implement on a baseball bat? Of course not. Is merely a straw man.
Every powerful tool can be abused. In fact, the more powerful it is, the more it can be abused. The abuse of the tool is the responsibility of the person abusing it.
We don’t require baseball bat or hammer manufacturers to think about how their product can be abused, even though baseball bats and hammers have been used to murder people before.