Gate 2 in T1 is also mixed use and has the same set up as 74/76 where pax are coached in but boarded directly out, unless they are domestic in which case they can enter the terminal directly, just one set of doors is opened instead of another.
It's an odd set up. I recently got a talking to for taking a quick photo of the Virgin A320 I had landed on as I walked up to the lounge from Stand 104 (via Gate 8a). The HAL staffer said there was a sensitive area I wasn't allowed to photograph. The only thing in shot was the aircraft I had arrived on so I assumed he meant Stand 102 / Gate 2 behind. After arguing the whole "you're not allowed to take photos" point, he said you can take photos anywhere airside so long as it's not a sensitive area like security, but I was still baffled as to what was sensitive about the view from the old domestic pier in T1 !