MATZ is not worth the paper it is printed on.....especially if it is a civil chart....
Just avoid the 'Government aerodrome' 'H24' 'Rule 45' 'Class G' ATZ and keep the usual requisite sharp look-out. Anything could be happening outside the regulated ATZ eg. civilian aviators who do not receive a reply or who cannot get a word in on the RT.....or non-radio flights.....