Saw the article earlier and thought

I suspect that in order for the insurance companies to provide the necessary cover, the owner will have to provide evidence of roadworthiness, i.e. the voluntary presentation of the vehicle for MoT testing and receipt of the appropriate 'print out' from the inspector.
Of course you will have noted that 'certificates' are no longer issued due to fraud, counterfeit and putting the cost of paper and printing onto the tester rather than HMG!

Chancers!
Nothing antique enough in the stable these days, anyway!

All the best, Bill.