My goodness - that really does seem to be a step too far.
https://seboshop.co.uk/sebo-spare-parts/evolution-spares/sebo-replacement-plug
... and so have a large number of other outlets - it's most certainly not anything new, even if BAS has only just come across an example.
If they are going to sell moulded plugs with 'flying leads', I suppose the least they could/should do is to 'do something safe' with the end of the cable (pending it's installation) - but, of course, even that would not deter or protect the most accomplished of idiots!
Kind Regards, John