@101101000
I'm sorry, I just skimmed the article when I replied.
I now read it in detail.

I do reckon this is a huge problem, probably the lack of fertilizers will be the biggest one.

Still I wouldn't classify this as a global food crisis. Maybe however we are just disagreeing on the definition. I would classify a global food crisis something where not enough food is globally available in the world, so that people throughout the world starve to death.
Something like the great famine in the middle age.
I hopefully believe this is not what is happening.
This is not to say it won't be a huge problem.

Until now there has been an overabundance of food, for all the people. Some people were still starving to death, but that was not because of the lack of food at a global level but because they had no access to the food.
I do not believe this war will take us from food overabundance to a shortage.