It does look a little familiar. I flew out on the 2nd of Jan and recognise the building. I think I must have been very lucky in general though, I turned up 1hr55mins before the flight, walked straight to the front of the line for Y with no status, got 18kgs of excess baggage checked with no cost, went upstairs and briefly noticed the lines, had a coffee at Starbucks, walked to the now non-existent lines, straight through passport control and security without any extra checks, into Duty Free and was at the boarding gate 1hr before the flight. All this at 7.30 at night. I only have fond memories of Heathrow.
Have feeling this may have been beginners luck.