It would be easier to sandbox if there were fewer features of course, but in practice we rarely see exploits even in complicated low-level APIs like webgpu (which must be a nightmare to make secure given how many buggy drivers and different devices it has to support). So it seems like in practice we are able to sandbox these APIs securely, and having them provides an incredible benefit to users who are able to securely and easily run applications (how else do you recommend people do this on desktop platforms?).
