Ah that's interesting to hear.
With my first Birkin (back in the smaller Sloane Street), my SA took me downstairs to the lower ground men's area to show me the bag.
At Harrods though, the SA took me to a room in the Hermes Fine Jewellery concession to show me the bag, away from the main concession area.
But now, with the latest Birkin, in the Cadogan Place boutique, the SA just showed me the bag in the open on the ground floor, which meant that I had an audience while viewing the bag lol. I even had someone come up to me while the SA was wrapping my B35 up, interrogating me about how long I was on the waitlist and even offering me 10% more than what I paid for.