Can't her husband just stand in front of her, behind the laptop webcam? There's often ridiculously simple real-world workarounds these complex device security process
There is no one else supposed to be in the same room as the test taker - for obvious reasons that they should receive no help on the test in any way.
Some households -- especially if you have small children, or live in a small house without the luxury of separate rooms, noisy neighborhood, etc. -- may pose a challenge.
But outside those scenarios the candidate should know to dedicate one room to themselves for the duration of the test and preferably keep it locked from inside and inform others in the house not to disturb them for those 2 or 3 hours.
I am surprised to see this simple requirement -- that there should be no other person in the video frame (which will be audited for it, both manually and through automatic processing) -- is considered draconian? How? Are test takers expecting to take tests in rooms where anyone else can casually walk in, move around, etc?
To be sure there are other quirks like no bathroom breaks, no glancing away from scree, no mouthing the words as you read, no covering your face or sometimes no resting your chin on your hand as you think etc that all can become very tedious and stressful sure.
They don't actually disqualify you (most of these places like https://www.proctoru.com or similar) just report to the exam administrator what they saw/noticed.