As I have said, I don't detract from honouring the memories of those fallen. Nor am I haveing a go at the RAF drivers (and it looked bloody impressive on the radar as well, fast moving jets over London!!!).
Personally, my beef is with the somewhat poor lead-up, with the massive effects the practice on Wednesday had on our inbound delays, and the actual on Friday. Sometimes, the poor sector driver sitting there doesn't have the luxury of being able to explain to pilots why they are holding for and unexpected extra 10/15 minutes (especially as to what happened on Wednesday!). And there were one or two unimpressed pilots holding.
As to the actual route and the orientation of the Memorial, there were suggestions of routing from the NW, crossing the approach path further out, but as I'm not in Ops or anything like that, and I 'm sure all these avenues (well, hope) were considered.