Like I said, I agree with the O.P. logic as I asked the same question to my inspector.
I had 14 potlights at 50Watts each. I should of been able to have them all on 1 circuit. What the inspector wants, he gets.
I can't disagree about that comment but wrong is still wrong although this call is somewhat subjective. Inspectors are human and don't know everything. I certainly hope they were broadly experienced and have a good general knowledge of all the work they look at but they make mistakes too. I am not suggesting you have an argument but asking him why he did not let you apply the rules I mentioned could start a constructive conversation. Of course any unwillingness to discuss can be a fault of Inspector mentalities it is still a good idea to remember both of you have an opportunity to learn a new thing.