Is YVR customs really paranoid? Much more paranoid than US CBP?

I recently got 'prevented' from exiting baggage claim by an officer who kept asking me "Why do you have so many bags?"

I live and work I Washington (USA), and this was my first trip abroad using YVR. I do have Nexus. I flew business class and was entitled to two checked bags, which I did have with me plus a rollaboard.

After scanning my Nexus card, I told the lady at the immigration podium that I had only cookies, and some pants (Uniqlo), and some mochi.... she waived me off. I picked up my bags at the carousel, but just when I was about to step out of the cordoned area, a [mod edit] guy got in front of me and asked, "Why do you have so many bags?" I told him I went shopping. He asked the same question. I told him all the items with me. He asked the same question. Then he asked why I picked Korea for a destination and why also Japan. He kept asking me the questions over and over and I gave the same answers.

I am not sure he knew I am not from Canada and that I was on my way to the border.

He eventually let me go, but scribbled something on my immigration printout form (could not make out what it was). Lady by the door collecting it did not even look at it. (Could he have placed something in my record??? How can I check???)

I eventually made my way to the border after I picked up my car. I was afraid that because I have a Nexus card, he may have messed up my record and I would be in trouble at the US border.

When I got the the US border, officer asked me if I had anything to declare. I said cookies, pants, mochi, sweater... He then cut me off and asked again. I enumerated the same items. LOL
He then said, "I'm only interested if you have alcohol, tobacco, weapons, plants, and produce/ meat." After I said no, he greeted me "welcome home."

Been living and working the in US for 15 years and have brought one, two, three, and at one point 4 checked bags with no problems at various US airports. YVR is a different experience.