When this OTT c**p was first put around there was little to worry about. The area covered was much the same but the restriction was generally from 2500 feet upwards outside of the usual zones around the major airports. It seemed entirely reasonable in that commercial (big jets) traffic volumes may well be significantly increased but the flight paths will not be lower than they are today. Given that there is no conflict today, why will there be conflict when a few people in lycra are sweating/straining/exerting for a few weeks?
I don't know what has happened since then but It's just gone mental.
Rans6....