... and that would be absurd, but if you think "best efforts" could be described as hiring a subcontractor to deliver something for an entire continent from one plant, then I have a lovely bridge to sell you.
Sorry mate, but neither you nor I know how the biological product is produced, how scalable it is, how long it takes to get facilities off the ground, etc. etc. etc.
The burden of proof is on the EU to say how AZ haven't made "best efforts".
As said, with a product that didn't exist 12 months ago and wasn't available for sale anywhere in the world until 3-4 weeks ago... good luck to them with that.