I understand that and the intentions are honourable. I just believe, having discussed with a range of non blues that the majority:
1) have no idea why we are booing
2) perceive as a negative that the fans would boo a competition we are doing rather well in. Bit like slagging off your host at a party
3) sweep this into the general media fed negative bias against city
4) those that do connect it with UEFA, think it's a futile gesture that no other club does
You could say, who gives a toss what non blues think which is a valid argument, but bearing in mind the clubs objective to reach out globally to new fans and grow the city brand, I think continuing this throws us in a negative light and does little to embarrass those that it is aimed at.