I respectfully disagree with that interpretation because it is concerned with the activity in question,
“in the course of which the alleged negligence or breach of statutory duty occurred”.
It would not, therefore, deal with the 99 years of accurate tax returns but would focus on the particular tax return that is the subject of the claim in negligence. That is the correct interpretation of the particular clause.
I will answer the question that I hear from a sedentary position: how do we deal with the question of “generally”? My answer to that is that the “generally responsible”
approach is directed at the activity in question. It is difficult to see, frankly, that it would have much of an application on the hypothetically negligent accountant—