Are you saying that the processing plant couldn't get destroyed by bombs? Heck, even the WTC with all that steel was destroyed by what essentially was a flying bomb. This is one of the reasons why Israel is not popular in Lebanon even by the people who are non-Muslim. Both Israel and Syria have used Lebanon's weak military to destroy industries that compete with them. It's much easier to use a car bomb or guided bomb rather than compete in the market place.
No, I would say that in a modern daily processing plant there are not enough Class A, B or D combustibles for it to "burn to the ground". Specifically, a diary plant is MOSTLY non-combustibles, metal, concrete and aqueous liquids. HArd to support a 'burn to the ground' structural fire.
Obviously it can be bombed to the ground, but that's not what the OWNER of said factory said, per the article.
FWIW, your chain of logic is poor, frankly.