My reading and several websites support that. Rather than the Churchill's 5 crew, the AVRE had a sixth - the demolitions NCO.
The teams I used in testing had only 2 men and were therefore very fragile - the prototypical 1 man would be worse.
For those interested, a bunch of links on the topic of AVREs, extra demo charges and dismounts:
http://www.bbc.co.uk/ww2peopleswar/s...a2690228.shtml
http://www.d-daytanks.org.uk/stories/avre-stories.html
http://www.cwgcuser.org.uk/personal/...e/lifday07.htm
http://www.remuseum.org.uk/campaign/...n_overlord.htm
http://www.bbc.co.uk/ww2peopleswar/s...a2181683.shtml
http://www.d-daytanks.org.uk/articles/avre.html