[nopriorarrests]

>there are a ton of dangerous or complex jobs that can be simplified and made safer with this technology.

Honestly, this is a good point. However, just to play a devils advocate, for emergency situations you don't need a real-time brain computer. You can just measure the adrenaline level or heartbeat rate (which is trivially easy with present tech) and on once it jumps, you shut down the whole machinery.

My point being, complicated brain link is not needed to send what is, essentially, a "SOS" signal.