For me there are two big takeaways from that piece.And that's just the preorders mostly around the 17th. It doesn't include people who would gladly buy one now if they were available. The real supply might be 1%.
1) The number of cards supplied and shipped out bears a striking resemblance to the numbers OCUK have had, and yet this is a different country, maybe there is some kind of fair shares policy being used here?
2) We are now over a month after the launch and not even 10% has been supplied, it is indeed going to take months to clear the backlog, as for all intents and purposes they are 93% hardly making any inroads into the initial demand let alone the pent up demand as you identified.
The other point is that it isn't just happening in the UK, it's at some major E tailers on the continent too, but they are clearly so frustrated they've gone to the specialist press with some very specific figures.