I watched the one at Coningsby, I was just about to get into my aircraft when it happened.
I never read the BOI report but IIRC the aircraft suffered a double mainplane failure, possibly as a result of previous overstressing.
thawes: There is a thread about Meteor accidents that might still be in the archives.
1953 was a bad year, 486 aircraft lost with 334 fatalities; so those two you mention would not have provoked any particular comment.