We're already there with WebAssembly SIMD & WebGPU. I don't know how to interpret it any other way than "exposing hardware" to the browser interface. And I have ANR'd my own machine required hard reboot. What I think could become standard is a modal pop up warning. In the same manner that WebRTC media streams requires explicit permission to access a users web camera. Herein lies dragons, abandon all hope and enter at your peril.