I can only guess at their motivation for writing this but the author is woefully misinformed, so much so it looks like intentional deception. Milk is one of the most nutrient dense foods known and the only problem with it is industrial processing destroys those nutrients which we add back in out of necessity for human health.

From the article: "Who knew that two tablespoons of dried basil have almost the same amount of calcium as a glass of milk?" - this is the first piece of supporting evidence provided, the rest so far several paragraphs in s is opinion, let's check it:

1 cup (254 grams) of Milk, nonfat, fluid, with added vitamin A (fat free or skim) = 306 mg of calcium.

two teaspoons of dried basil? = 20 mg of calcium.

(All NSF data)

What the author claims is a complete lie. I don't care if she didn't bother checking or lied intentionally, the article goes in the trash. This is why we have peer review - to check false claims. This isn't wrong it's egregiously wrong - off by an order of magnitude.

People don't need to advertise the merits of apples, milk and oranges. But companies try to disparage them so you'll buy processed food instead.

Look at what's added to milk now:

Milk, lowfat, fluid, 1% milkfat, protein fortified, with added vitamin A
Milk, lowfat, fluid, 1% milkfat, with added nonfat milk solids and vitamin A
Milk, lowfat, fluid, 1% milkfat, with added vitamin A
Milk, low sodium, fluid
Milk, nonfat, fluid, protein fortified, with added vitamin A (fat free and skim)
Milk, nonfat, fluid, with added nonfat milk solids and vitamin A (fat free or skim)
Milk, nonfat, fluid, with added vitamin A (fat free or skim)
Milk, nonfat, fluid, without added vitamin A (fat free or skim)
Milk, producer, fluid, 3.7% milkfat
Milk, reduced fat, fluid, 2% milkfat, protein fortified, with added vitamin A
Milk, reduced fat, fluid, 2% milkfat, with added nonfat milk solids, without added vitamin A
Milk, reduced fat, fluid, 2% milkfat, with added nonfat milk solids and vitamin A
Milk, reduced fat, fluid, 2% milkfat, with added vitamin A

Industrial processing of food is so bad it destroyed many of the important nutrients. Around 1900 the upper classes in Britain began warming milk to kill newly discovered bacteria which destroyed all the vitamin C in it causing massive deaths from "infantile scurvy".

Milk was a critically important part of mans diet and is why 33% of the world carries a mutation that enables the digestion of lactose past puberty.

It's also why mans colonization of ice age climate like the Europe was even possible.

"During the most recent ice age, milk was essentially a toxin to adults because — unlike children — they could not produce the lactase enzyme required to break down lactose, the main sugar in milk. But as farming started to replace hunting and gathering in the Middle East around 11,000 years ago, cattle herders learned how to reduce lactose in dairy products to tolerable levels by fermenting milk to make cheese or yogurt. Several thousand years later, a genetic mutation spread through Europe that gave people the ability to produce lactase — and drink milk — throughout their lives. That adaptation opened up a rich new source of nutrition that could have sustained communities when harvests failed."

Ask her to compare nutrients with whatever she suggests to drink instead. For those who can tolerate it, it's one of the most important sources of nutrition there is, the full fat 3% stuff.

I'd take this more as a sign the government is going to cut milk to schools or something.