Any reasonable reading of that note you just read out.... It's quite clear that whoever was writing the memo was being careful about not offending people inside the bank. The writer wanted to keep the numbers down to simplify the scheduling of a meeting with the then ambassador to China, who was essentially doing us the favour of providing some of his thoughts as we worked on how we could accelerate the performance of the Canada Infrastructure Bank.
The reference to “delicate” has to do with the person wanting to be careful and not offend any of the employees inside the bank. I don't think there's a conspiracy hiding behind there.