the problem is subsonic everything you mention had nothing to do with bringing the aircraft down.
He isn't a poor bugger because he knowingly ignored approved procedures. Stupid maybe but poor bugger he ain't.
It is very simple:
bodgit repair
bit falls of
concorde catches it during take off roll
accident investigators prove link and cause
As to the French case and blame. You can use what terms you like but the fact is a sentence has been issued and rightly so for this tragedy.