No. The article is an opinion piece not an in-depth reporting. You can read this "straight to the point" news source [0] to get some facts on that particular matter.

I am not saying that the current crisis is entirely due to this event. But it made what was probably already a bad but manageable situation into a full blown crisis.

This "newsletter" piece [1] in the NYT mentions several other aspects like business concentration.

[0] https://www.foodsafetynews.com/2022/04/former-employee-blows...

[1] https://www.nytimes.com/2022/05/13/briefing/baby-formula-sho...

I'm confused. Your link is about the Abbott plant, but the main article is about the entire market.

And your 2nd link covers the same things as the main article - concentration and too much regulation?