An example in the article is Chris' hommus. There's been a 16.9% drop in the amount of chickpeas. The article doesn't say what was increased, but my money is on a lot more water, a little more emulsifier, and maybe a little more vegetable oil.

If you just snack on hommus occasionally as part of a nutritious diet, and you get enough calories, all good. You only miss a tiny but of fibre and protein.

But if you're on a tight budget and raising a picky-eating four year old who is getting a lot of their fibre and protein and calories and micro nutrients from hommus (and I know such a child), that kid just lost a more significant amount of nutrition, without any notice to their care giver.