Well that is a bit extreme. Air Canada has a fleet of those that perform thousands of flights per week the harshest of weather and they never lost any due to icing: because the crews are trained and made aware of the CRJ's weakness about wing contamination and never take off with any unless fully de-iced.
The Air Canada CRJ100 landing accident in in Fredericton in 1997 had ice mentioned as one possible contributing factor though it could never be proved.
See the TSB report at
http://www.tsb.gc.ca/en/reports/air/...0011_index.asp
Beech