dixi88,
"Does nobody care about our aviation history any more?"
Not entirely sure that you can speak for EVERYONE who was in Hyde Park or the surrounding area. I was in Victoria park last week when a Dakota flew over, EVERYBODY that I could see was looking up at it.
Aeroplanes over London are extremely common, and if someone is not an aviation enthusiast, why on earth SHOULD they care for our aviation history any more than you care for our musical instrument history?