Is my drug company lying about pigs?

Hey guys

I suffer from cystic fibrosis. There is currently a national shortage until 2026 on a life-saving drug that is derived from enzymes taken from the pancreas of a pig. The manufacturing company say this is because pigs have become 30% leaner since 1950 due to a global demand for less fatty meat, which has meant smaller organs and less enzymes.

Even if this is true, I can't understand how a gradual 70 year change has resulted in a sudden complete shortage. Does anyone here have experience farming pig organs/have any opinions on this explanation?

https://www.pharmacymagazine.co.uk/news/concerns-grow-over-shortages-of-life-saving-drug-creon