I have just read through the article and cannot see any suggestion of that, just a vague assertion that 'some clubs' will struggle to survive. Although the article is largely focused on the Premier League, I would be very surprised if there were casualties at that level. Given the huge amounts of money the bigger clubs make, I have a feeling the banks will be happy to underwrite a higher degree of debt gearing for them, at least for the time being. That will not be the case for smaller clubs which promise little or no financial return, and I suspect it will be the number of clubs in and beneath League One that will reduce.
The gambling taking place in the Championship has been known for a long time - an excellent investment if you make it to the Premier League, but a disaster if not. That must be addressed with new regulations to stop it happening, but it is the ludicrous amount of money available in the top flight that is the root cause of the gamble. Will any of those clubs now fail? It will be small numbers if so: as David Sharpe says, there always seems to be some lunatic with too much money to pick up the pieces.
Football finances, as well as the structure of the football pyramid, will need readdressing to make everything fit for purpose. If that leads to a shakeout of mercenaries and predatory agents, so much the better. Out of the worst kind of adversity, football now has an opportunity to put its financial house in order. Will it do it? It has no choice.