I have heard a lot of very intelligent and educated people describe the banking system in the same terms as the article. Too much to conclude that it is a laughably wrong take. If I stopped reading every time I saw that description, I wouldn't read much about the banking system at all, beyond that one Bank of England paper that people post every time this comes up.
The mechanism by which deposits "increase a banks ability to make new loans" is just a sideshow. Deposits are not the limiting factor in the banks ability to make new loans. It might be they use deposits as a cheap way to meet their Basel III liquidity obligations, but there are other routes to doing so.
How is the cash I deposit from the dividends I earned originate from a loan? How about the community banks that purchase gold from their customers?
Consider that some banks are hundreds of years old and have commercial relationships that span well over a century, long pre-dating the modern financial system and the considerations we're discussing.
Wouldn't that mean that the origin of all "money" under this system, either be a loan or fraud?
https://www.bankofengland.co.uk/-/media/boe/files/quarterly-...
The bank takes your signed loan note as an asset and creates an advance against it on the liability side.
A deposit is just an advance with the ownership tag changed.
And that's how it has always been.
As Reginald McKenna, former Chancellor of the Exchequer and Chairman of the Midland Bank, said in 1928[0].
"I am afraid the ordinary citizen will not like to be told that the banks or the Bank of England can create or destroy money. We are in the habit of thinking of money as wealth, as indeed it is in the hands of the individual who owns it, wealth in the most liquid form, and we do not like to hear that some private institution can create it at pleasure. It conjures up a picture of an autocratic and irresponsible body which by some black art of its own contriving can increase or diminish wealth, and presumably make a great deal of profit in the process"