I'm not sure it's great.
It's definitely useful for people to be able to unbundle risks. Or rather, it's useful to someone who knows what they are doing. Something like what's described in the article, for instance, where there's a mutual benefit to executing the financial transaction.
But what I really worry about is that where there's a game to be played, there are chips to be lost. Financializing everything creates a million little games, and the games favor people who know the rules.
If you're living in the old world, and someone offers you a university place, you just take it if you can afford it. What happens? Kids who can afford it will take it. If they do well, they make the surplus. If they can't afford it, that's tough, but they also aren't out of pocket. If you take a degree and things don't go as planned, you lost the capital, but you aren't in massive debt as well.
In the new world, what happens? Well, you can now take a loan. That's you taking a bet on your future income being sufficient to pay off the interest on your loan, and hopefully also the principal. You are basically mortgaging your education. More people can go in this model, but the extra people are also more likely to be the marginal people. They get a roll of the dice that they didn't have, but even though as a group they are going to roughly break even, some will end up in trouble that they could not ever have ended in without the loans. People who win in this game are still paying out part of their winnings: you're a doctor, but you still gotta pay your loans. People who lose are in deep trouble.
Both the winner and the loser are paying the financial market.
Now throw in a non-bankruptcy law for these loans and watch the whole market eat itself as lenders figure out that they can really be quite casual about who to lend the money to.
The same thing happens with actual mortgages. If you lived in a world where nobody lent money for a house, a house would cost a lot less. Instead, you get to compete with other borrowers to bid up prices. You're taking a bigger risk for the same house that someone a hundred years ago might have considered to be for the poorer people in the city. (Look at restrictions on building for an underlying reason why the market flies.)
The same happens with cars. The same is happening with BNPL.
Who wins with these games? Financial intermediaries. The vast economy of marketing the loans, turning them into derivatives, trading those derivatives, administrating them, all sorts of ancillary functions.
Also, deeper pockets. Much like insurance, if you can bag together a bunch of risks, some of them will offset each other. The individual who is taking a degree cannot normally derisk it by some portfolio effect, and he certainly can't just offload it with a phone call.
It's like everybody has to ante up to sit at the poker table of life. You can't just let the button come to you, you have to play all the time. You can't just be a doctor or a lawyer, everyone needs to be a trader.