It's like a parasite, the OS is being eaten inside out. I'd be fine with this, it's a typical disruption process.
Except the browser stack is full of legacy features, is bloated, and I'd hate for this to be the de-facto platform for "everything" going forward.
The joke that JavaScript will become a virtual machine which will then be implemented in hardware and be the only way to do everything is not THAT far from reality.